OneReef
Reef Guru
My two Koralia 4's had gone uncleaned for months and months now, they had gotten pretty disgusting. After taking them out and putting them into vinegar, I had not idea how much junk was in them....lol They were sponges, vermetid snails, dozens of mini brittle stars, micro algae, macro algae, and probably some other stuff. Smelled like death. They are all pretty and black and clean again now though, running like a charm. :0)