<a href=showthread.php?s=&postid=8323169#post8323169 target=_blank>Originally posted</a> by flyin2jz
Alot of times when it blisters like that its not a good sign. I have heard its from the alk being messed up. I have a couple of corals that did that but i got the ca and alk in normal ranges and it quit. I havent seen bad effects from it other than if it gets too swollen it will break and cause rtn sometimes. Kevin