I have a 30 gallon right now that needs more stocking. I have 2 Corydoras in there and 5 neon tetras. I want something that is affordable as I’m in high school and don’t have a job at the moment. What should I add in here?
At least 4 more corys of the same species you have now, about 5 more neons, and maybe a gourami (not a dwarf gourami; they're widely reported to be more prone to health problems than the other varieties).