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mike,
if you can a picture will be good.
there is a problem some where and we need to fix it.
isit a clear "air" bubble?
IF so, here are some things to look for and some things that MIGHT happen.
the bubble coudl have come from , small air bubbles with in the tank, most likly form the skimmer, check to see if this is so.. i have had two fish get a bubble this way. what happens is the bubbles stick to the fish. then are adsorbed in to the skin. they work there way up to the eye. sometimes it will be slowly adsorbed in to the fish and nothign will happen, other times it will dry the membrane of the eye out and a hard "shell like" lens will be there forever. the fish will go blind in that eye.
another way is ..the fish is gulping air when he goes to eat food from the surface of the tank. easy fix.. make sure you use sinking pellets or make sure the food is released in the water not on top. the gulping of the air is basicllay a gas emblism
of course you could also be looking at "pop eye" Exophthalmia this is usally a bacteria infection and should be treated with the appropiate meds in a QT tank!!!!..
some time you could be looking at parasite infection but you would also see other problems.. also water quality and if he is a new guy to the tank can raise some problems like this. one other thing that coudl possible cause this is Fish TB.. but you dont really see too much with that..
SOooooooooo.. a picture wil be the biggest help right now and lookng at the tank as a whole.
HTH
__________________
Tim
need something to read? just ask me.
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