ive always liked the carpintis complex... however i have had ZERO luck with Herichthys in general. the only time i had any that put on size and color was when i had them in an outdoor pond over last summer. i got four of these rio hondo varient about 6 months ago, and also got some larger 4-5" cyanoguttatus and lost all of them. i dont get it...my south americans THRIVE and even my centrals do well (parachromis sp.) the problem i always had was they would darken up, look ratty, and die..one by one, while other fish in the same tank would thrive? ive given up, but your dude is awesome! naturally im jealous!