Hi everyone, new member and first thread. First I will give you the layout: 75 gallon bare bottom aquarium, Single 20" T5 (minimal makeshift lighting), powered by a Sunsun hw 505b canister. The inhabitants are nine Dovii grow-outs ranging from 2 to 3 inches. Now I'm not sure if this is an actual problem or if I'm just a beginner to mammoth sized cichlids, either way I hope you'll bare with me: Two weeks ago I had a nasty green phytoplankton bloom which prompted me to switch from a sponge to the UV canister which cleared it up in a few days. Did a good 50% water change last night and removed all the waste from the aquarium. Spotless. Believe it or not today I come home and the waste has built up and looks just as bad as last night before the change! I've attached a photo so you can see, but my question is.... why does my Dovii's waste look so fluffy? It almost looks like little brine shrimp floating around the water column. Is it normal for these fish to excrete so much and if so how do the pros make their tanks not look like fluff soup? My feeding regiment is a small handful of Ken's cichlid pellets and a cube of brine shrimp twice a day. Too much? Thank you for your feedback and for making it through my odd rant.