pest

Hmm Any idea what’s in my daughters tank living on this snail? It started as a long spiky thing and now has almost a bloom of sorts on top Link of video is here: https://youtube.com/shorts/rfd3v4qxBHE?feature=share

I found these on the bottom of a ceramic plug rack that was on the sand. You can see a frag plug hole in one of the pictures. There seems to be a dark spot inside, it's not moving and one popped when I tried to flich it off

ID what’s living inside the Acantho and how I can get rid of it. Bivalve clam? Burrowing clam? Is it a worm? how do I get rid of it.

Hello, this is the predicament I am currently in: I contracted Acropora Eating Flatworms in late 2022 and have been dipping three frag racks full of Acro frags and colonies for the past 7 weeks in Potassium Chloride. I dipped in 1 TBS Food Grade KCl per gallon for 10 minutes each rack. The...

Pretty strong shell, and didn't move when i nudged with tweezers. Good bro or bad bro?

Hello, this is a 13 gallon 2.5 year old tank… only pest I have that I know of are bristle worms however I just noticed this attached to the plug of a bird nest coral. Would this be aptasia? And if so how do you recommend I take care of it, the coral isent doing so well so maybe take the whole...

Just saw this floating around in the bottom of my bare bottom tank. Took it out for some inspection. Included pictures of what I would along with the rock if that would help identification. Thanks!

Hello fellow reefers, I was looking at my corals today and I noticed that there was something suspicious living inside one of my corals. I have searched all over the internet trying to figure out what they are and have not had much luck. Based on the pictures that I have attached. You’ll notice...

just got some new corals today and one of them has these wire-like stuffs. Are these worms or something?

I just recieved a zoanthid frag from aquasd 2 days ago which is what im assuming this came from and i just found this today on one of its polyps. I have only seen one so far and i checked the 3 of my zoanthid frags which have been doing fine but what im wondering is if they stay solely near and...

Cleaned out my HOB filter today and found this guy on the filter. Never seen anything like it before. Currently the tank has a six line wrasse, a diamond goby, and a couple hermit crabs. Tank is 29g also, any idea of what it could be?

I’ve got a few of these pest in my tank. Not sure if they’re bad nudis or good. Sorry for the picture it hard to get a picture of them. There white

I been having issues with flat worms and nudis. I am wondering if there are any fish that will eat these. I have a 29 gallon to keep that in mind. Flat worms don’t bother me much. But the nudis are. But if there is something I can for both. Thank you.

I’ve been reefing for two years and had a bunch of corals during my time but I’ve never seen aptasia in my tank. Started off with all dry rocks . i don’t quarantine any of my corals and I don’t have a specific vendor Am I lucky ? Or is there other people out there that doesn’t have it either...

I just notice this on one of my corals. Not sure if it is or not. But I am quit worried now. Any help would be great. TIA

Sorry for the crappy photos, hard to get a good one. Tank is 1 1/2 years old. Mixed reef 40 gallon cube. 10 gallon water change EVERY week. I just noticed this weird like gray almost mold like fuzz growing in small splotches on my rocks. Not sure what it is, would appreciate advise please

idk how I got these tiny feather duster guys in the first place but they are getting completely out of control. I really don’t mind them on my rockwork but they are completely covering my eagle eye zoa. I’ve tried picking at them and brushing them off with no luck.. I heard from my lfs that a...

Hello! Over the last couple months Ive noticed a couple of these black/brown specs crawling around like bugs and for some reason the first coral I noticed them on has been having very slow tissue recession but still has great polyp extension for now, however I noticed it receding more and...

Hi all. I am having issues with my zoas. I noticed that they have started to not open up, some areas are disappearing and I am noticing a some are kinda turning black and disappearing. Can anyone hell. I have them in a relatively low flow and parameters seem good. Nitrates maybe a lil low since...

Can anyone help me ID this crab and is it coral safe? I noticed my zoas have been looking poor and dissapearing and not sure if this guy is to blame. Video is attached along with some photos. cheers

I woke up today with these brown discs on one of my heads of candy cane. They appear to be moving and i just want to check what they could be and if they are pests. If so how would i go about removing them? Thanks (sorry for the dark image, lights just turned on)

Greetings fellow reefers, with great sadness my first post has to be about something so grim. I have a nanocube 40l with a mixed reef. Everything has been going fine for 2 years, I haven't added anything for a year. A few days back I started to notice STN on my Acro strawberry shortcake...

How many of you have these living in your tank, forever? Pretty amazing stuff. Who knew?

I have seen this stuff before (I think on a dying hammer, but never figured out what it is. what is this bubbly white ring-y stuff? I tried blowing it off in a dip & this didn’t work.

Hi everyone, i just encountered this while cleaning the tank. They're on a dead coral, I don't know if those are its polyps or if they are anemones. The tank is 1 year old. I started with new dry rock. The only corals I have are the ones I put in the first batch and that went through...