critter

Hi All - I have these tiny critters running around my sand bed. They look somewhat transparent but with a red/brown body. Look to be more walking vs. wiggling and tend to see more of them when I feed. In the attached video you can see them in the middle to lower third of the video. Any idea...

I bought my first ever coral about 4 months ago, a small 2 head Torch and a fungia plate coral, I dipped them both and got a small flatworm off the torch luckily. A few days into owning the torch and watching it get used to the water and extend, I noticed a little section of bristly exoskeleton...

Hello, I've had this scoly for months now, yesterday I noticed that it is showing some of its skeleton and when I looked closer I found these critters. Can anyone help with identifying them? and how to get rid of them? Note: I posted this question on the "Reef Aquarium Discussion" page, but I...

This looks more like a bug from the top and a snail from the bottom. color - black length - without antenna approx. 1.35cm. (with antenna-feelers stretched out approx. 2 cm. shape - flat-oval, like a bug had a strong suction on the glass of the tank is it a reef tank friend or foe ? Keep or...

This came off of two zoanthid colony’s I bought from petco, can anyone tell me what it might be?

Found this guy on a frag plug from a recent coral purchase, any ideas? very small, black soft body, no visible shell.

So I see these small white weird looking things everywhere on my rocks and it doesn’t look like aptaisia or anything to me

I bought some new corals for my tank yesterday, acans, zoas and a Duncan which have all settled in nicely. Only when I looked at one of the rocks today i noticed that there was a small object shooting out bursts of a white substance into the tank. I’ve never seen anything like it and naturally...

Found this one on one of the suction cups that hold the heater probe. Unsure if you guys can see the glass but its the only glass wall that has the spots on it.

These little white balls just appeared in my tank I noticed them this morning. Anyone know what they could be?

Looks like some sort of a pod but its huge? Roughly 5mm body and a couple more with the antlers. When its swimming about its straight like a stick and then when i hit it with some flow it curls up into a c-shaped ball. One of the good guys? Can I throw it into the fuge?

So I'm not entirely convinced this is even a critter or hitchhiker, I've had this ricordea in my tank for awhile now and haven't added anything new in over a month. Found this random green growth on the rock my mushroom is on. It almost looks like a coral forming? I have no idea. Anybody have...

Seems like some kind of mollusk that opens, any ideas? Check video something Black looks like tongue comes out

Hi Guys I've just been watching my tank and noticed a ball of what looks like poop being dragged across the sand bed. Closer inspection and it looks like it is being dragged by a tentacle of sorts, or perhaps a worm? I'm trying to upload a video to show you so hopefully it uploads! :)

Some kind of worm coming out of this tube, thought was peanut worm orig in store and we tried to remove it. No idea what this is

Hello. After my new tank had an ick outbreak at the end of April, I started my fish less cycle. As I looked more closely in my tank a couple days ago I noticed this guys wandering my rocks. As I’m new to the saltwater hobby, and just had my outbreak, I’m a little superstitious worrying that he...

Can anyone tell me what this pest is, and if it is a threat to my reef. It’s a very small white/ or translucent oval shaped pest. I’m seeing them on my glass as well as coral and live rock.

Need help with I'd on this little guy.

Is this a baby feather duster?

So I have a mushroom with a feather duster worm almost underneath it, it currently split in two halves and I have a feeling it may have been irritated by the feather worm, I have another mushroom on the other side that is doing extreamly well that also has a duster worm underneath it but its...

Please help!!! My boyfriend and I have just spotted these tiny tiny white spots in our tank! They kinda look like worms? THEY. ARE. EVERYWHERE. Can anybody try and identify these things?? *the picture isn’t the best quality, i apologize for that * Also, excuse the algae! *any tips on...

Hello! I’m completely new to having a saltwater tank and I’m trying to learn as much as possible. The other day I got a feather duster (been in my tank for 3 days) and today I saw this little guy crawling on him. Looks like a really tiny snail but I’m not sure.

Hi, i found this critter in my tank about a week ago and they disappeared and i found them again. Is it good or bad to have them in the tank?

Recently discovered these black critters crawling in my tank. At first I only noticed a few, but tonight I decided to check on my tank hours after lights out and noticed a lot of them crawling all over the rocks and on some coral as well. It’s hard to take a picture so I attached a video link...