you have had two for 6 months and they are still that tiny? wow my new baby one grew about an inch in 3 weeks. what are you feeding them? I must admit all my fish get a rather extensive choice of foods and and pretty well fed, hence why my fish tend to grow fast and the CAE's don't really eat the algae any more. the baby one is getting fed solely on bloodworm's as he is in a tank with puffers and thats all they eat oh he gets the occasional algae wafer thing but had heaps of algae to munch on and in my other tank my CAE who was about 1inch when i got him and is now around 4inchs eats algae wafers, flakes, and bloodworms.. none of my CAE's have ever been aggressive towards other fish they tend to hang out with them, like the one with the puffers he thinks hes a puffer and has taken on their temperament and inquistive attitudes its pretty funny, i think they are cool fish!