What is this?

InsaneIchthyology

This has been in my tank for awhile and hasn't seemed to cause any problems, I'm just curious about what it's called.

onefish2fish

aiptasia

Reefing Madness

+1 ^

Logansbloodyclaw

+1

also called glass anmoeone, sting corals and will kill them, and can over run a tank quickly, need stuff like joe's juice! small peppermint shrip. aiptasia eating file fish. or copperband butterflyfish..

how old your tank?? how many anmoeone do you have as there is no way of removing it completely from your tank, apart from boiling your rock and letting it re mature in a seprate tank with rock that is living..

onefish2fish

go with aiptasiaX, joes juice or even a small squirt of lemon juice may help. personally i would avoid shrimp and fish and even berghia nudibranches.

Logansbloodyclaw

swings and roundabouts

ladayen

My town clinic has these things all over one of it's tanks. The tank is 6'x4' and 4' high. Getting in there to spot shot with lemon juice is not possible.. so would going with some of the afore mentioned file fish, peppermint shrimp or copperband butterflyfish be a good idea?

onefish2fish

peppermint shrimp would be my suggestion to "attempt" to help with the problem but not all of them will eat it. the reason the shrimp being the better choice because they will readily except other foods as well compared to the other choices. again they may or may not eat the aiptasia though. the berghia nudibranch being prob. the best at eating it but the worst choice as i believe this is their primary food source causing them to slowly starve when the infestation is clear unless ofcourse you pass them along. honestly im not much of one to buy something to "help fix" a problem, its like getting cats if you have mice but then what you get a dog because you have cats? lol. as much of a pain as it might be i would remove a rock or two every few days - week and work 20 minutes on them killing the aiptasia and replacing the rock into the tank. since you mention a 4 foot deep tank, maybe ziptie a piece of airline tubing to a dowel and get it close to the mouth ( its center ) of aiptasia as possible without bumping it ( which will cause it to retract ) and run some aiptasiaX or similiar down the airline tubing if that makes sense? either way in a short time the problem will be handled and nothing will need to be added, and again if need be a few peppermint shrimp from a few different sources if you feel you have to go that route.

Logansbloodyclaw

+1

totaly agree dude!!!!!!!!!!!

Reefing Madness

I'd go with the Nudibranch. Get a handful of those and they will clear the tank up in a couple of months. Or its time to redo the tank, only sure fire way to kill them, throw the rock in boiling water.