Okay so the owner of our company wants a fish tank and put me in charge of the project. Budget is $500. The space is 36 x 20. So i figured a 65g (or a 50g, 45g, 40breeder etc). I want to give him a proposal with several options of fish to choose from as well as environments. I'm looking for a couple different groups: - South american cichlids (heard they're least aggressive) - Larger more common tropicals (gouramis, rams, angels, etc) - coldwater (maybe a good option to throw in there) Also... let me know what kind of environment I can have with the groups... i know some fish eat plants and some dont. Some like more rocky environments and some dont. Thanks in advance!