Any clue what this is?

[Kain]

First hello i am new here

Second I have a 29 Gallon Biocube and pretty much new to this as i have had my tank a year now.

Anyways my pump was blowing air bubbles out of it over night (maybe 10 hours) while I was away for the night cause my filter got clogged and 3 of my snails have now flipped over upside down.They are still moving some and I flipped them over again , but they not really moving.Maybe Dying, don't like alot of oxygen? Only things that seem like they got affected.

So one of them was wedged between some LR and I had to move the rock. When i moved it i found this, which i have no idea what it is. Good ,Bad ,Name?Any information would be great. Picture provided below

Thank you in advance

[paddyob]

Aiptasia. Kill it.

[paddyob]

Joes juice or Aiptasia x.

Some others have different methods.

[Nano]

Yup +1 and a healthy one at that

[monocus]

inject it with lemon juice-if you get more than 50 get ahold of me and i'll set you up with some berghia

[monocus]

whatever method you use-do it in the morning or the daughter cells could spread

[Kain]

there is 1 big one and like 3 tiny ones around it. I was going to takeout the rock and smash it in 1/2 keep the polys and throw out the half with the bad stuff on it.

[WindowMaker]

Snail PTSD.... It happens, theyll get over it.