Hi. Im new to holding cichlids and was wondering how many males i should have in my tank. I am mostly conserned about nitrite buildup from the bioload. I am fully commited to weekly water change, but it whould be nice to able to go on a 2 week holiday once a year, and not comming home to a dead tank. My tank is L/120cm D/41 H/55 / US numbers are 47/16/21 I would greatly appreciate any advice you guis could provide.