we have a mix of cichlids from parts of africa and central/south america, and a few non-cichlids. We also have an AAUV24W UV sterilizer made by AA, and an air stone powered by an elite air pump. We have had this specific tank running since mid december, since our first 90 gallon of 5 years decided to spring a leak. I know many of you are wondering why so much of a mix, but we have had no major problems with our mix of species yet. Have added a nutrafin CO2 system. I will take new pictures of our newer setup once I can and post them, for now I will keep the old ones up.