So, I have a brand new 180 tank, cycled ready-to-go tank. I have 2 filters rated for 300 gallon tanks going right now with plenty of flow and hiding spots. I'm using Base Rock from my very old salt water tank as decorations, so they have plenty of open caves to swim through and hide in, it's pretty cool (the rock is completely dried out and disinfected, don't worry!). My big problem (besides possible aggression of course) is the substrate is sand. It's fine for the africans, but I'm not sure how the south american's will handle that. Also, I know I'll get enough fish nazi's after me just becuase I plan on mixing these two fix, but I might as well say my Ph fluctuates from 7.3-7.6 or so. I know fish can adapt just fine, so I don't really think theres a huge issue in the Ph, especially because I'm getting all these fish from the same store with the same Ph going... Anyways, enough background on the tank, now there is stocking help.... So I definitely want majority of the fish to be Africans, I know that for sure, but I just don't know how many I could put in there. For the South American's I KNOW I want to have at least 2 JD's, possibly 2 fire mouth's, and 1 or 2 severums of some kind. I currently have 3 parrot fish (thats all thats in the tank right now) and I'm not getting any more. If it's not too aggressive, I'd like to put in 1 green terror (I hear theres pretty mean fish so thats not crucial to have). And thats about it really, those couple fish and the rest africans... So heres the wishful thinking list easier to read and let me know what you think! 3 red parrot fish 2 Jack Demsey's 2 Fire Mouth 2 Severum 1 Green Terror 10-20????? African Cichlid assortment (jewel, electric yellow/blue, etc.) - help me out with how many I could put in! So yeah, I'm sure I'm going to get plenty of critism and people saying this is a terrible idea, but this is my plan and I want to make it work. So, I'd appreciate as much positive advice as I can get. Thanks so much!