Well I over filter my tank a lot so it kind of helps but ever since I got the python I LOVE water changes lol so I do about 75% a weekId like to see some better pictures as well. Watch your Koliba, mines a real bastard. Cant stand anybody around him for more than 30 seconds before he turns on them.
Also how do you keep up with the water changes? At 17 bichirs and an afrowana im doing a 20% and a 70% water change a week. Id hate to see what your water bill looks like lol.