pests

There are a lot of unsavory pests that we deal with in the aquarium hobby, like bristle worms, hydroids, hydras, vermatid snails, aiptasia, and others. What would you say is the most annoying thing to deal with? For me it has been hydroids, tried a couple of things that got rid of them and for a...

I was watching my nassarius snails move when I put food in the tank, and it looks like some of them have a browish yellow flake like thing attached to their tails.. is that normal anatomy? Or is that a flatworm or other parasite and how Do I go about it? Thanks fellas I attached videos

Sorry for the lower quality videos, it’s hard to get a good video as they tend to hide whenever I pull my phone out. I started some tanks with maricultured rock from Florida. Everything was going great until members of my CUC randomly died and corals seemed to deteriorate, despite parameters...

These 1/8 inch pure white shells/spots have been appearing in my reef for some time now. They typically disappear after a few weeks. They are on the glass, on rocks, on frag plugs, wherever. Never on actual corals or skeleton though. Any ideas?

Are these 2 things on my ACAN pests? There's an odd bubble looking thing between heads, and a weird little polyp thing? This is first thing on the morning, heads are not fully opened up for the day yet so that's why they look closed. Just noticed those though. Bonus question, is this a pest on...

So I was just checking my tank to see if I could see some pods in the sand and I seen a few but I also seen a bunch of these worm looking creatures that are eating the algae. Possibly bristle worms? I just want to know if they are good or bad!?!

Hey everyone, Just seeing if anyone has tips or a video tutorial on removing a zoa colony from a piece of rock. Like is there a way to gently peel them off? The piece of rock this colony is on is always getting covered in algae and has a few aptasia living in it, that's why I would like to get...

Hi all! I’m quite new to the reef tank world. So far I’ve kept a clownfish, favia coral and strombus snail on a 45 liter tank. All is well so far and water parameters are good. I’m now introducing a trochus snail, a skunk shrimp and a hammer coral. Different random algae has been growing on my...

I will likely be downsizing my reef tank at some point in the near future and setting up a fresh tank that isn’t as pest ridden. but I’d really like to be able to reuse my corals and any possible rock as well. My tank has it bad it has Horrible Aiptasia, Bubble algea, Bryopsis and I’m pretty...

Anybody have any input on removing or reducing this yellow sponge? Surprisingly very little info on it on the internet. I read someone say that it can take the calcium and carbonate from rock and cause it dissolve. Well, I have it on my dragon soul torch colony stalks and one day one stalk...

Hi All, So I moved a coral today and noticed the below! There were a few 'shells' I had seen a month ago, but now they seem to be overtaking! Any suggestions for complete removal??? Thanks all!

I’ve been searching the web on this and see a lot of info on the do or don’t dip. I have a newish tank build that I’ve been careful to not introduce especially - bristleworms, spinonid, vermetids, spaghetti worms and detritus worms to because my first tank is filled with that and I hate it. My...

So I just bought a mushroom from my LFS, and I did my first reef dip. Before my second reef dip, I cut off the frag plug and saw that there were flatworms crawling off and out of the frag plug (2-3). There were two frag plugs stacked on top of each other and some of the worms came from in...

So to make a long story short a couple of my digis were not doing too good. I didn't think much of it and I ended giving them to a fellow reefer. These digi have not done good for me for like the past month or 2. Everything else is fine. He got back and said I had black bugs?? So I immediately...

I have a fairly new mixed reef with only 3 fish and some CUC, my combtooth blenny has been flashing for about a week, previously he was swimming around all over the tank and now won't eat and is always hiding. He was in observation for about week before adding to the display tank, did a FW dip...

For starters here is the link to their website: https://killercorals.com/ I was looking for some cool zoas to add to my tank and this company has some that I like and I was wondering if anyone has ever ordered from them before? Since I prefereably want to order from a reputable source as I...

Hope everyone is doing well , just wanted to get your opinions. I took a very long break from the hobby and recently got back in about a year ago. since then , I have spent nearly 5 figures with a large/popular company that is supposedly quarantining their corals in an attempt to be pest free...

My favorite torch started to retract a bit recently, and after dark I shined a light on it to see these little critters. Gave it a good dip and moving it to the bottom of my sandbed to recover until I get it into a clean tank I'm starting. Does anyone know what these are? I don't have acropora...

Welcome your thoughts/advice. I picked up a cleaner shrimp and psammacora frag at my LFS last weekend and put them in quarantine in a small (betta) tank in an abundance of caution: my nano has been running pest free for over two years and I'd like to keep it that way. I am now seeing what I am...

So i noticed this weird tenticle pop out of one of my rocks. Kinda looks like a bristke worm but its huge. This is the best video I could get.

I have been in the hobby for five years. I have been able to achieve good growth and color from both soft and hard corals (lps & sps). I was feeling pretty good about myself. Maybe a little cocky. I have never had a significant aquarium pest. I had aptasia and bristle worms. I researched...

This is literally just to sate my curiosity because I like asking questions - I don't have aiptasia nor majano in my tank so I don't need help eradicating it. Anyway, I have a few pest 'nem questions! I know I could just google these, but I would rather ask people who are actually passionate...

I have removed this in the past but it keeps consistently growing back, wondering if it could be identified and the best way for me to remove it permanently. (white slimey things in the image)

i have heard that blue sapphire damselfish (the peaceful ones) eat flatworms, and i was wondering if they (or any closely related species) have been known to eat bristle worms? obviously im not expecting this random 6 dollar fish to have the appetite of a melenarus wrasse, but i do just want to...

I used to be pretty active on here, years ago. Excited to see if some of the OG's are still around. Firstly, thank you for your help in figuring this out! My Tank is a 29 Gal JBJ Cube with Eshopps Nano Cube Refugium Sump Roughly 33-35 gallons overall. Parameters are pretty stable (I will...