Hey mate. My biggest problem with growing these guys out has bin that they keep breeding in my little grow out tank. Which always results in a few deaths So I try to move them on once they are sex able. I generally sell privately for $30 each (shops pay close to that and buy more than a pair) I currently have a young male in there that is about 3-3.5 cm. (stunning little bugger and full of colour). I keep selling trios so the females are much smaller at about 2-2.5 cm. Here is a pic of some previous fry http://www.aquariumlife.com.au/showthread.php/46890-FS-apistogramma-beanschi?highlight=Beanschi The pictures never do them justice because i am no good at taking photos so they are the best i could do. that pair had just bred in my tank beleive it or not so they had bin separated and I rushed to sell them although they were quite small I couldn't have them breeding in my grow out tank. I cull any deformities so u will only get healthy young apistos. I also have mendezi growing out at the moment as well as bitaeniata marine aff. Bit they will be a little longer. Thanks