BrianNY said:Hi Mexico,
If it were my discus I'd be doing daily water changes and making sure the tank had plenty of aeration. Are there other fish in the tank now, or is the discus alone? Brine shrimp are not the best source of protein. I would try feeding frozen blood worms. It isn't unusual for a discus put in new surroundings to go on a hunger strike.
Keep us posted.
Steven_Askham said:Just how many discus and at what size could I have in a 33 gal tank ?
BrianNY said:Mexico, with that large a bioload you need to be changing more water. At least 30%.
Discus and neons don't mix very well. Discus require a temp of 84F. Perhaps that's one reason your discus doesn't have an appetite. Tank too cool? Neons don't do well at higher temps.