Have quite a few juvie peacocks and haps right around the 2inch mark who don't seem to have grown much over the past few months and still are not showing any color. My tank size is a 40 breeder and my temps are usually around 80 give or take a few degrees in both directions. I just got a python so I'm going to be able to change the water much more frequently but what factors do you guys think influences or can help growth the most??