#pests

I need a fish that can live in a 75g tank without outgrowing it, can eat pests like flatworms but won't eat clean up crew like hermits and snails, and is big enough not to get eaten by my Spotfin Lionfish (roughly 6in fish) Tank is a 75g reef tank with about a 2-3in bedding of Aragonite sand...

Around 4 months ago, one of my Acropora (Acropora gemmifera) that was previously doing incredibly well suddenly lost its shine and spiralled into a decline of health that subsequently led to its death around 2 months ago. The cause, to my shock, was a species of amphipod. I am unsure of the...

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...

Hey all, long post warning but really need some help: So I wasn’t quite sure where to post this as I’m having an issue with both LPS/SPS and I’m not sure if this is an algae, bacteria or pest. I have been dealing with a lot of death the last few weeks, but really struggling with certain...

First off its definitely a type of beetle. They congregate around water, both tap and mainly in my aquarium. So definitely not hydrophobic. Niehter are they hallophyllic nor hallophobic (salt averse/loving). Size maybe 5mm at largest. Color is dark brown. Cannot identify 1) swimming legs...

Discovered several of these on my rocks which i think are some type of snail. Had a couple of frags one one side of the tank die the past couple of weeks so I’m not sure if this may be related. Any thoughts?

Hello beautiful people. Was wondering if someone could help identify if the worm that comes out of the hole just a regular bristleworm or something more concerning. I notice it does have long antenna like things from its head. Video below. I also have these two crabs. It looks like they...

I have a pretty bad aiptasia infestation in my 90 gallon display tank. I first tried aiptasia x, but i overdid the amount at once spiked the Ph and irritated my coral. I tried again using a smaller amount, but the Ph spike still took out my big birdsnest coral. I have on two occasions added...

Hello fellow reefers! I noticed some white spots on 2 of my acro colonies and snapped a piece to inspect under microscope. The appear to possibly be eggs from something but I truly have no idea. I added some Berghia Nudis a couple of months ago, eggs look similar but smaller Any help will...

Any pros out there that can verify the species of flatworm I have here? —Brownish-purple in colour. —they love mushroom corals only —Melanarus wrasse, leopard wrasse, and mandarin will not touch them. They aren’t really hurting anything but are kinda unsightly. 167 g system 50 gallon refugium...

Hey reefing fam, Wonderind if anyone has seen anything like the attached pics? It doesn't look like AEFW bites to me, but clearly something is upsetting it, and looks almost like something is eating the flesh... Not sure what though. I've dealt with red and black bugs in the past (treated...

I have a lot of blue clove polyps ,green discosoma mushrooms and green palys all over my tank that I want to get rid of, any solution to the problem? Have seen someone mention f aiptasia or kalk to kill mushrooms but im not sure. I have to mention that its a mixed reef tank, 80 gallons.

Hey all, after a pretty depressing trip to the LFS yesterday for advice, I've decided I have to tear down my 20 gallon nano reef because of an absolutely terrible colonial hydroid infestation which I have been battling for close to six months now to no avail. I'm going to salvage what corals I...