I've been culturing tons of springtails in preparation for these guys plus melanogaster fruit flies. Their stripes are becoming more vivid with every passing day. I don't think the stripes are the issue its the red body color that takes the time. I'll see if I can get a better picture of little tony in the morning so you can see the difference a couple of days make with the stripes. They are definately visible now. I use SuperPig for the frogs and a color enhancing fish flake for the tads.