Did you dechlorinate or used aged water at the same temp and simular ph?
Did you put anything new in the tank or cleaned an ornament?
when you tested the wate did you test for ammonia,nitrite and nitrates. If so were there any readings of these?
Did you put in a new filter media? If so did you rinse it out first?
Sorry for all the questions but all these things can affect your fish.
So the more we know the better help We can be.
If you use a medication ensure to keep an eye on your tank readings as it will start up the cycling process from almost scratch again.
Regards
------------------
TONY S
Oscar Cichlid Fan Club
anthonysnell@aol.com [This message has been edited by oscar2001 (edited 04-17-2001).]