right now there about 3.5 inches ( o i have another jewel in the 29 to make 4 but its about 2.5 inches and im holding it for my grandpas gf daughter ) but any infos on these guys like what PH they need to breed and cause my PH is at 6.0 right now. right now i have 4 jewels in the 29 growing out and waiting for the 100 to be build so i can transfer them to the 55 then. and i have a lil male convict as dithers in the 29 for them. but OMG there so cute.