Went through about 30 pics trying to get my fish to be still enough to photograpgh them. The flash washed out the pic too much with that white sand. There are actually 13 full-grown (3-6 inches) African Cichlids in there, plus a Chinese Algae Eater, a Spotted Sailfin Pleco and my lonely T-Bar Central American Cichlid. The only way to get them all to come out from hiding is to feed them and then they are moving too fast to photograph them without the flash. The substrate is Silica Sand with Crushed Coral mixed in. The Africans love it... satisfies their nature to dig.