fish behavior

Hello guys, I bought this porcupine pufferfish 3 days ago. He was at my LFS for around 2 months and was on a dry krill (Tetra brand) diet. The water is medicated thus there was no need for me to QT him. At first, he was very energetic swimming across the tank, coming up to me when I approached...

We've wanted an orchid dottyback, love their coloration and their lively, sassy faces/personalities- finally found one at our LFS so brought it home to our tank about a week ago. It hid in the rocks for the first couple of days so much we named it Carmen (as in where in the world is Carmen San...

Anyone else’s Blennies have an odd habit. Mine has a set bedtime, every night same time it puts it self to bed for the night regardless of tank activity. I find it quite hilarious that my fish has a better bedtime habit then my kids.

I could have sworn my two clowns were swimming together and I turned by back for a few seconds to get food, I looked again and after I fed I noticed I was missing a fish. I looked around and saw the smaller of the two laying down like this someone please help, he looks like he's slightly moving...

my family and I went on a trip for a couple days all the fish were doing great but when we came back 1 fish was dead, 1 dissapeared and the foxface was breathing heavily and lying on the ground. Could it be ammonia? I've moved him into a qt just incase.

Hi all! My royal gramma has been acting extremely weird over the last 1-2 days, and I was wondering if this is cause for concern. He has not been hiding in the rockwork like he typically does; instead he has been sitting in the corner of my tank or swimming up and down the corner.

I've had my clowns for about three weeks now, my bigger clown (the spaz one) has been swimming like this quite often, especially when the blues come on. She likes to glass surf a lot during the day and swim into the power head, she mainly only doesn't spaz out during feeding, she will start...

I'm setting up a new and bigger tank for a school of blue-green chromis. I've watched the recent BRS chromis tank build, but that is a huge tank and I'm not prepared to get a big grouper to balance out the chromis school. I do need a slightly aggressive tank mate though to encourage the...

I live at the Indo-Pacific so i get tropical reef species in my shores and i caught this juvenile Ornate Sand Goby (Istigobius ornatus). He is around 1.5 inches but he will grow to around 4.5 inches. From research ive seen of Istigobius ornatus and their relatives, its a sandsifter and need an...

So weird title, I know. But the title is really all I can describe it as. My 2 tangs- Powder Blue Tang and Blonde Naso Tang- were caught red handed giving each other the kissy-kiss action. All jokes aside, I would like to know what kind of tang behavior this is and what it means? I've never had...

I got my baby yellow watchman goby a few weeks ago, she immediately paired up with my candy cane pistol shrimp and sleeps in the burrow at night.. but during the early day before the lights come on shes normally swimming around. is she just exploring while my other fish are asleep or maybe...

My wrasse has been acting like he has had flukes for the last two weeks. I have been feeding mysis with seachem focus+metroplex. He has been eating everyday even on his worst seeming days so I didn't ever worry. I don't have an air stone so I was going to get one today incase this was an oxygen...

Hi, I just recently purchased a pair of Wyoming White clownfish and they have been in quarantine with copper and nitrofurazone. Today is the 6th day and I noticed a long white string hanging from one of the cowfishes belly along with irregular swimming patterns and a damaged back fin. I am...

Hi all, my Flameback angel has been in my display tank for about 4 weeks now, and last night it’s swimming became more erratic and he was giving little head shakes. This morning he has been swimming around fine but a little quicker than usual. When I fed this morning he ate the most food I’ve...

I am getting a royal gramma next week and want to build a cave out of rocks for it since I heard they like caves. Do they prefer caves with 1 opening, or a pass through kind with 2 openings? Also if anyone has any royal gramma observations about what kind of rockwork they like to hang out...

A few days ago I recently did a routine water change on my aquarium and when I plugged all of my equipment back in, everything seemed off. First, my Rainsford and Mandarin Dragonette were showing weird swimming patterns. The Rainsford normally liked to hang out in front of his hole but now he...

Forty-two years ago (not long after I graduated high school), I was living in a small 700 sqft walk up flat and I really wanted to adopt a small dog. However, I could not afford the required damage deposit! As luck would have it fish were not subject to the deposit, so I purchased the first of...

I recently purchased a wheeler gobby and tiger pistol shrimp yesterday. This was an impulse buy and not on my original list… so here is my question. On my list was a diamond watchman gobby. Can I still get him or do I need to cancel my order? See below for the beautiful pair, I couldn’t resist...

I have had multiple jaw fish who were decorating around their house by rearranging shells and stones. However, my problem is with a blue hippo tang. This guy takes frags from one side of the aquarium and throw them on top of other corals or other places in the tank. I had her since she was a...

Hi everyone! I've been curious to see which fish you've kept that turned out to be a model citizen. For me, it's definitely my blue star leopard wrasse, wouldn't hurt a thing and as peaceful as can be. Which one of your fish is a model citizen? Let's chat

So one of my clownfish(Nemo) is swimming around the spot where my Strawberry Psetochromis, Purple Dottyback(Shiny)'s territory, Shiny jumped, we aren't really sure how and are actively trying to help shiny but the thing about Nemo is he only hangs out at the top, Shiny's territory I guess is...

Before the Aquarium Police come after me, READ!! I have complete knowledge of these fish being cousins of each other and it’s NOT ideal to house the two species together. (insert checkmark) My tank is my tank, your tank is your tank. This is my tank, thank you. Nice, now that the Aquarium...

ok so i have a small little pygmy wrasse named lumi and normally he glass surfs and likes to go into little caves and crevices. well this weekend i picked up some corals at a frag swap and now he’s hiding more and barely glass surfs or is in the water column. is this something i should be...

Hey guys! Let me know what you think of my stock list below for tank upgrade 80 or 90 gallon. Please let me know which may be better from the ones I wrote “or” in. Thanks!! Green chromis 3 Clowns 2 Six line 1 Royal gramma 1 Molly Miller blenny 1 Blue spot jawfish 1 Springeri damsel 1...

Dear reefers, Not that long ago I bought a new Orange Stripe Prawn Goby and I loved him. But after 2 days I noticed my Clownfish were attacking my goby, because of that I had to remove the Goby. But now I really want to add a new fish but I don't want the same thing to happen, I know every...