ok, from being on this forum ive discovered im a dumbass and have overstocked tanks, and the reason i havnt had a problem until know was because my fish wernt big enough to give me trouble. i have been giving away fish, but i dont want to get rid of my oscars if i can avoid it. would two oscars be ok in a 90 gal tank with a 5" jack dempsey? the oscars are about 8 or 9 inches now, and i know i might have to get rid of the jd later, but would it be ok for now? would just the two oscars survive ok in the 90 gallon tank?