I bought my first two fish (ocellaris) on saturday from LFS
and they looked fine, brought them home and put them in the tank and all was well, eating sleeping swiming happily. I went back to the LFS
on sunday and the other fish from the tank they were in were all laying on their sides breathing very very heavily. I was slightly concerned by this but didn't really think anything of this because my fish seemed fine. I've just got home today and one of my fish is laying on the sand displaying exactly the same symptoms - breathing very very heavily and not really moving at all...the other fish seems to be ok.
HELP!!! what am I supposed to do??