So you want a frog fish; I call them anglers

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Why the painted is my favorite. They are interactive, they seem to be very curious as to what's going on outside the tank. The warty is cute, but not as interactive. I've had painted's that would follow me from one side of the tank to the other, and incessantly fish me with that fuzzy lure. Don't be sucked in, they act like they are always starving. Funny thing is they seem like they bond with their human caretakers, they would not follow or fish anyone else. I think my girlfriend was jealous. They are aggressive hunters, I've seen them fast walk, so funny, to corner and trap a fish or ghostie. One would climb up to a top vantage point and even angrily fish a fish that was out of reach, even circling their lure, desperate for attention. One would take a night time swim after the whites went out, taking off like a super hero and pumping the jet packs, using their feet to bounce off the glass. for some reason I was determined to get to eat dead food, one night he just marched down from a higher plateau grabbed the silverside from the feeding stick, and spit it at me, so belligerent. They really do have personality.

A reminder, remember to include some color to keep their color bright. They will imprint, and in fowlrs, I've seen them turn shades of greenish and grayish to blend with rock, substrate, and algae. An easy way in to include some red macro algae, gracilaria is a hardy one, there's dragon breathe and red grape. Here's a great online source if you can't get some from your lfs. https://www.live-plants.com/
Haha, looks wise, I’ve always preferred the wartskins, but your descriptions here are really selling me on the painteds.
 
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“Unfortunately, the special needs and housing requirements of frogfish are often underestimated. As they feed occasionally only, the nutritional value of each single food item is of major importance for the health of the fish. Compared to most marine aquarium fish (e.g. zooplankton feeders), frogfish – and other ambush predators – are less able to compensate for the nutritional deficits of one food item with the next. (This is one example of why frogfish are actually hard to keep in the long run.) Like most marine ornamentals offered in the aquarium trade, frogfish are wild-caught. Once spotted in their habitat, they are easy to collect, and therefore, some species are ever present in the aquarium trade. “

“Based on my own experiences as well as communication with traders and hobbyists, I assume that most frogfish only survive in captivity for a certain amount of time, until their body’s natural reserves of certain essential substances are used up (although exceptions may occur). They belong to the group of marine ornamentals, which I sarcastically call “buy-starve-buy-starve” (another “BSBS” example would be dragonets). The advantages of tank-bred ornamentals compared to their wild conspecifics are well known: They are much more resilient and easier to keep as they are well adapted to aquarium conditions and go well with common fish food such as frozen food or even pellets.”

marine biologist Christian Göbel in a reef builders article on captive breeding

This explains so much as to why soon after the hobbyist gets their angler eating dead food, they wither away.
 

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I've kept a few, my first going back 25 years. These are very difficult fish to keep and I am still very frustrated as to the success in keeping these guys long term. I do have some information I would like to share for those interested. Be forewarned, they are not for everyone and do take special care. They are sedentary creatures and are best kept in a species tank, they don't last long in community tanks. For long term success they will need to be fed a live diet. They can eat fish equal to their own size, and if eating too large of fish, they both usually die. Over feeding is a big concern, usually in the form of feeding too often. You don't want to expose to air, as thy can gulp air and it is hard for them expel it, many times dying if it happens.

The most popular of the bunch is the warty, wartskin angler, Antennarius maculatus. My favorite is the painted angler, Antennarius pictus. Some of the others seen around are the giant angler, Antennarius commerson; I see the sargassum and marble mouthed around, as well as the hairy. I would stay away from the pygmy, they never live. Juveniles can sometimes be confused and some are sold as assorted because the supplier is not able to ID them. Here a good reference if you are trying to ID one http://frogfish.ch/species-arten/all-frogfish-species.html

Depending on the species, I prefer tanks from 20-40g. These size tanks help you manage feeding better, and they really are sedentary and do not swim, per se. They have jet packs and may propel themselves from one point or another and I even had one that would swim(kind of) each evening when the whites went off. He would blast off bouncing his feet off the glass and you could see his jet packs pumping from behind his front legs, so funny. They are fine with medium, lps flow, and will find spots to protect themselves if the flow is too much. I also had a warty that would do this kind of floaty thing, where he would float around the tank looking for food, I called it his recon missions. So with too much flow they will just be less active. They also don't care for high light, some even less so and hang out in a cave all day while the whites are on. Some prefer caves, like the painted; so included a cave in their scape is a good thing. Provide some open spaces and different levels of elevation. It is fun to keep them in a reef or a macro tank. They are like chameleons in a sense they will imprint onto their environment. Over time a colorful angler will turn blah if kept in a tank of plain rock. Many of them live among colorful sponges and various colored macros in the wild. So keeping them with similar colored corals or red and orange macro will encourage them to keep their bold colors. I kept one in a tank with Living Color fake corals once and maintained his orange and red coloring.

Feeding, your biggest challenge, never think that you are 100% convert these guys to a dead food only diet. Many just will not accept it from the get go, no matter how you plead. If you do them them to take dead food, they will usually suffer from nutritional deficiencies and be dead within a year. They will never accept the dead foods necessary to provide them with proper nutrition, and supplementation will not help, they likely need the live gut flora and other elements found in live food. Any one telling you are keeping these guys for multiple years feeding them krill and silversides just are not being honest. If they do take dead food it is usually not enough and just wither away, literally starving to death right under your eyes. Some may take dead food for a while, but it is always inevitable, one day they will just stop. Sometimes you can jumpstart them back onto live but most times, if it's been a while, not. Also, you want a bump on a log, basically no different than silicone model, feed them dead on a stick. They will just park themselves into the feeding spot and may never move again until they die. Depending on the species, and mostly based on size; the choices of live food are ghost shrimp, guppies, and mollies. While they can eat very large prey, it is best to feed a few smaller items. It's pretty common if they eat something very large, they end up dying. In the wild they eat on a gorge/fast routine, and in captivity it's best to mimic this schedule. If is an itty bitty guy, I've raised wartys as small as an inch, it's ok to feed every other day. As they row you want to spread their feeding times further and further apart. Once mature a weekly schedule is good, while I have seen every 10 days work. You want to manage their feeding and not just dump a bunch of food in all at once. Feed them until you see a nice bulge in their belly. Feel out their schedule by allowing them to get active, going into hunting mode, before you feed them again. They also poop like dogs, you can literally see the turd on the substrate, paying attention to this also helps you get into their feeding schedule. Feeding too often is bad news, because of their metabolism, the undigested food can start to build up, building up gases in their guts. This can start to indicate by this buoyant type activity, if you see this, stop feeding for a while and start allowing more time between feedings. Magnesium has been known to help with digestion, so at least keep your mg at reef levels, even at 1400ppm is safe for corals and I've found to be beneficial.

If you must house them with tank mates be mindful of a few points. Any tank mates must be larger that the angler, full grown, and you still must get them live food. Do not house them with any aggressive species that may injure or pick on them, even mild mannered fish that nibble. Because of their sedentary nature tangs and angels and such will nibble at them. This will cause them stress or injuries that many times turn into bacterial infections. They will cannibalize each other, and in most cases because of the size of each, they both die. Remember you read it here if you decide to do it anyway, because eventually it will happen. They are ambush predators that do attack and are not fast, they set up shop and wait. I have had damsels and peppermint shrimp live for months before ending up prey. They will watch and maneuver until they catch them one day. I've seen them figure out where someone sleeps and wait outside their hidey hole. This is their nature, it does not waiver if the fish is healthy. You can use fish like damsels as color and movement, but knowing one day they may be food.

They do not tolerate meds and chemicals of any kind. I haven't tried my new method of splitting dosages for internal parasites into thirds; which has worked on some sensitive scorps. At this point I have not seen an angler successfully treated with any med. Getting through treatment doesn't mean success if they die shortly afterwards. But they do come in with internal parasites and if so, will need to be treated. That's where I would break up general cure dosage into 3rds. They can get ick and other protozoan diseases and can not tolerate copper or cp. On some species ick is very hard to see, because some have this fuzzy type of camo. They can live months with ick but will eventually succumb. Never use salt water fish as food because eventually you will spread disease.

I would consider keeping them in lower temps, at least at low end of tropical, maybe even lower if possible. While I haven't seen enough to consider a possible point to keeping them longer, it does have some considerations. Several divers have told me they see them at deeper depths in water under 70 degrees. Think about other species that had a dismal captive lifespan until people figured out they needed lower temp. So far I have one hobbyist keeping her angler at around 72 degrees, and so far she has kept this one twice as long as any others she's ever kept, over 3 years now. She has also followed some my other points with feeding and mg. While I have heard of people keeping them as long as 5 years, I've never met anyone keeping one for even 2 years except the person I just mentioned. I have kept a warty over 3 years and a painted over 3.5 years, that's my best and it's not good enough.

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if you fed them guppies, would it be babies or adults
 
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if you fed them guppies, would it be babies or adults

It would depend on the size of frogfish, even the smallest frogfish could likely eat a dozen baby guppies at one feeding. An inch warty could eat 2-3 small adult male guppies at a feeding. Even though they can eat something equal to their own size, it's best to offer a few smaller items. It seems to better for their digestion, than trying to digest something huge, and some have even died when eating too large an item. You want to feed them until you see a noticable little bulge in their belly.
 

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It would depend on the size of frogfish, even the smallest frogfish could likely eat a dozen baby guppies at one feeding. An inch warty could eat 2-3 small adult male guppies at a feeding. Even though they can eat something equal to their own size, it's best to offer a few smaller items. It seems to better for their digestion, than trying to digest something huge, and some have even died when eating too large an item. You want to feed them until you see a noticable little bulge in their belly.
great... have you got any experience with baby guppies? my female is pregnant and i'd like to know what i can feed the babies
 

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great... have you got any experience with baby guppies? my female is pregnant and i'd like to know what i can feed the babies
If you're dealing with newly hatched larvae, you'll need to use larval foods like copepods and Artemia nauplii - you can expand their diet to include things like baby guppies, ghost shrimp, etc. as they grow. Depending on the species, you may need specific kinds of copepods to start with.
 

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I've kept a few, my first going back 25 years. These are very difficult fish to keep and I am still very frustrated as to the success in keeping these guys long term. I do have some information I would like to share for those interested. Be forewarned, they are not for everyone and do take special care. They are sedentary creatures and are best kept in a species tank, they don't last long in community tanks. For long term success they will need to be fed a live diet. They can eat fish equal to their own size, and if eating too large of fish, they both usually die. Over feeding is a big concern, usually in the form of feeding too often. You don't want to expose to air, as thy can gulp air and it is hard for them expel it, many times dying if it happens.

The most popular of the bunch is the warty, wartskin angler, Antennarius maculatus. My favorite is the painted angler, Antennarius pictus. Some of the others seen around are the giant angler, Antennarius commerson; I see the sargassum and marble mouthed around, as well as the hairy. I would stay away from the pygmy, they never live. Juveniles can sometimes be confused and some are sold as assorted because the supplier is not able to ID them. Here a good reference if you are trying to ID one http://frogfish.ch/species-arten/all-frogfish-species.html

Depending on the species, I prefer tanks from 20-40g. These size tanks help you manage feeding better, and they really are sedentary and do not swim, per se. They have jet packs and may propel themselves from one point or another and I even had one that would swim(kind of) each evening when the whites went off. He would blast off bouncing his feet off the glass and you could see his jet packs pumping from behind his front legs, so funny. They are fine with medium, lps flow, and will find spots to protect themselves if the flow is too much. I also had a warty that would do this kind of floaty thing, where he would float around the tank looking for food, I called it his recon missions. So with too much flow they will just be less active. They also don't care for high light, some even less so and hang out in a cave all day while the whites are on. Some prefer caves, like the painted; so included a cave in their scape is a good thing. Provide some open spaces and different levels of elevation. It is fun to keep them in a reef or a macro tank. They are like chameleons in a sense they will imprint onto their environment. Over time a colorful angler will turn blah if kept in a tank of plain rock. Many of them live among colorful sponges and various colored macros in the wild. So keeping them with similar colored corals or red and orange macro will encourage them to keep their bold colors. I kept one in a tank with Living Color fake corals once and maintained his orange and red coloring.

Feeding, your biggest challenge, never think that you are 100% convert these guys to a dead food only diet. Many just will not accept it from the get go, no matter how you plead. If you do them them to take dead food, they will usually suffer from nutritional deficiencies and be dead within a year. They will never accept the dead foods necessary to provide them with proper nutrition, and supplementation will not help, they likely need the live gut flora and other elements found in live food. Any one telling you are keeping these guys for multiple years feeding them krill and silversides just are not being honest. If they do take dead food it is usually not enough and just wither away, literally starving to death right under your eyes. Some may take dead food for a while, but it is always inevitable, one day they will just stop. Sometimes you can jumpstart them back onto live but most times, if it's been a while, not. Also, you want a bump on a log, basically no different than silicone model, feed them dead on a stick. They will just park themselves into the feeding spot and may never move again until they die. Depending on the species, and mostly based on size; the choices of live food are ghost shrimp, guppies, and mollies. While they can eat very large prey, it is best to feed a few smaller items. It's pretty common if they eat something very large, they end up dying. In the wild they eat on a gorge/fast routine, and in captivity it's best to mimic this schedule. If is an itty bitty guy, I've raised wartys as small as an inch, it's ok to feed every other day. As they row you want to spread their feeding times further and further apart. Once mature a weekly schedule is good, while I have seen every 10 days work. You want to manage their feeding and not just dump a bunch of food in all at once. Feed them until you see a nice bulge in their belly. Feel out their schedule by allowing them to get active, going into hunting mode, before you feed them again. They also poop like dogs, you can literally see the turd on the substrate, paying attention to this also helps you get into their feeding schedule. Feeding too often is bad news, because of their metabolism, the undigested food can start to build up, building up gases in their guts. This can start to indicate by this buoyant type activity, if you see this, stop feeding for a while and start allowing more time between feedings. Magnesium has been known to help with digestion, so at least keep your mg at reef levels, even at 1400ppm is safe for corals and I've found to be beneficial.

If you must house them with tank mates be mindful of a few points. Any tank mates must be larger that the angler, full grown, and you still must get them live food. Do not house them with any aggressive species that may injure or pick on them, even mild mannered fish that nibble. Because of their sedentary nature tangs and angels and such will nibble at them. This will cause them stress or injuries that many times turn into bacterial infections. They will cannibalize each other, and in most cases because of the size of each, they both die. Remember you read it here if you decide to do it anyway, because eventually it will happen. They are ambush predators that do attack and are not fast, they set up shop and wait. I have had damsels and peppermint shrimp live for months before ending up prey. They will watch and maneuver until they catch them one day. I've seen them figure out where someone sleeps and wait outside their hidey hole. This is their nature, it does not waiver if the fish is healthy. You can use fish like damsels as color and movement, but knowing one day they may be food.

They do not tolerate meds and chemicals of any kind. I haven't tried my new method of splitting dosages for internal parasites into thirds; which has worked on some sensitive scorps. At this point I have not seen an angler successfully treated with any med. Getting through treatment doesn't mean success if they die shortly afterwards. But they do come in with internal parasites and if so, will need to be treated. That's where I would break up general cure dosage into 3rds. They can get ick and other protozoan diseases and can not tolerate copper or cp. On some species ick is very hard to see, because some have this fuzzy type of camo. They can live months with ick but will eventually succumb. Never use salt water fish as food because eventually you will spread disease.

I would consider keeping them in lower temps, at least at low end of tropical, maybe even lower if possible. While I haven't seen enough to consider a possible point to keeping them longer, it does have some considerations. Several divers have told me they see them at deeper depths in water under 70 degrees. Think about other species that had a dismal captive lifespan until people figured out they needed lower temp. So far I have one hobbyist keeping her angler at around 72 degrees, and so far she has kept this one twice as long as any others she's ever kept, over 3 years now. She has also followed some my other points with feeding and mg. While I have heard of people keeping them as long as 5 years, I've never met anyone keeping one for even 2 years except the person I just mentioned. I have kept a warty over 3 years and a painted over 3.5 years, that's my best and it's not good enough.

1653179929787.png

1653179972836.png

1653180070236.png
thoughts on this?
I saw here some people saying that feeding fw feeders to sw fish can cause a multitude of health issues
 
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thoughts on this?
I saw here some people saying that feeding fw feeders to sw fish can cause a multitude of health issues

It's pretty simple; I have been using guppies, mollies, and ghost shrimp as food for predators for over 20 years. I keep species for several years to over a decade, close to their lifespan in the wild; that most can't keep alive for a year. Guppies and mollies are actually brackish fish with a similar fat and protein profile as the fish many of these preds eat in the wild. Ghost shrimp live in fresh, brackish, and salt water. These people have never kept these species I keep and give info on alive, they don't know what they are talking about. Let them keep something alive 1st, and then offer advice.
 
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thoughts on this?
I saw here some people saying that feeding fw feeders to sw fish can cause a multitude of health issues

If you convert your frogfish to a dead only diet they will not get the needed nutrients and will be dead in months. If you use saltwater fish you will pass on disease very quickly.
 

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If you convert your frogfish to a dead only diet they will not get the needed nutrients and will be dead in months. If you use saltwater fish you will pass on disease very quickly.
cool. in your experience what is the best food to gutload them with
 
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cool. in your experience what is the best food to gutload them with
Just a high quality pellet food. I use omega one micro pellets, they are small enough to get a few in the gut, which then transports to the frogfish. I don't mean to dissuade anyone from including dead food, just don't expect them to receive all the necessary nutrients in a dead only diet. It can be beneficial to have them agreeable to taking dead food, just in case something happens to the live food supply. Just make sure to keep it low in thiaminese, wild salmon and San Francisco Bay brand silversides are a couple of things to try.
 

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Very definitive write up, thank you!!, just got some nice macroalgea to help him keep the red color, along with some red ball sponges and investing in a chiller, my 72 tower octopus tank is at 18 degrees but I don't think I need that big a one for the 29gal angler fish tank. It's a Tunze 9012 skimmed tank with 1/2 deep sand bed and 1/2 under gravel. I have this setup for the u of m natural history museum, had 16 people up today and none could spot the angler fish till I pointed it out, the lure shows up nice against the black in this ohoto
 

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Very definitive write up, thank you!!, just got some nice macroalgea to help him keep the red color, along with some red ball sponges and investing in a chiller, my 72 tower octopus tank is at 18 degrees but I don't think I need that big a one for the 29gal angler fish tank. It's a Tunze 9012 skimmed tank with 1/2 deep sand bed and 1/2 under gravel. I have this setup for the u of m natural history museum, had 16 people up today and none could spot the angler fish till I pointed it out, the lure shows up nice against the black in this ohoto

Have you seen these, they are great for a small tank, I get about 4-5 degrees lower than ambient temp on my 29bc. Amazon has them for cheap but you can't post an amazon link here.

 

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Hi, a curiosity that isn't clear to me after reading a bunch of Angler threads: will they eat snails? Thinking about a cuc for an Angler only nano tank.
 
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Hi, a curiosity that isn't clear to me after reading a bunch of Angler threads: will they eat snails? Thinking about a cuc for an Angler only nano tank.

I've never known them to eat snails. Let's think of this logically, 1st off they are not human toddlers, they have innate naturally instinct. They would not normally eat hard bodied inverts in the wild. They need a stimulation of movement to entice them into eating, the slow movement of a snail would not peak their interest. Now could there be a freak accident and a snail tumbles from a rock in front of an angler, and the angler strikes out of instinct, and eats a snail, maybe. But they will not stalk and eat a snail.
 

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I've never known them to eat snails. Let's think of this logically, 1st off they are not human toddlers, they have innate naturally instinct. They would not normally eat hard bodied inverts in the wild. They need a stimulation of movement to entice them into eating, the slow movement of a snail would not peak their interest. Now could there be a freak accident and a snail tumbles from a rock in front of an angler, and the angler strikes out of instinct, and eats a snail, maybe. But they will not stalk and eat a snail.
Thanks for the reply. I found more threads later as well, my fault for bad search keywords.
 
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