Well, sometime in the future I want to get a 20 gallon. I'm just not sure if I want to get a 20 gallon long or a 20 gallon high. For this tank, I hope for 2 honey gouramis, 6 cories (still haven't decided what breed yet. Advice is gladly welcomed.), and around 7 bloodfin tetras. I want which would be a more appropriate tank setup, a 20 gallon long, or a 20 gallon high.