i doubt that i can do sand dwellers but according to reservestockcichlids.com i can put in Callochromis melanostigma Burundi, Ectodus descampsi, Xenotilapia flavipinnis Kekese Red, Xenotilapia flavipinnis Kigoma, Xenotilapia flavipinnis Magara in a 30 gallon. is this true or inaccurate information?i wuld love to have some of these.