there's really no way to isolate the problem without knowing the water parameters, ammonia, nitrite, nitrate and temp. any amount of the first two can stress the fish into catching an infection, nitrates over 40ppm are said to cause stress, but i can't confirm that. high temp can promote bacterial growth.
you might want to hold out on the euthanasia, it's up to you. i've personally experienced and have also read about others finding out the 'he' was actually a 'she' that exhibited the same symptoms until releasing eggs, although after that much time, it's probable that you would have seen this before. for the record, my healthy cories take naps on their bellies all the time. i used to think they were dead until i noticed their eyes tilting down to scan the floor.
personally, i would stop the meds and do a series of 25% water changes over the next few days.
Last edited by jaidexl; 10-22-2006 at 07:29 AM.
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