[Taras1]

Make sure he's got plenty of algae or dried seaweed (nori) to eat. Mine likes to graze on my liverock. He'll also need some frozen food like fine enriched cyclops/mysis shrimp. I'm not a big one for flake foods, though you might try him on spirulina flakes.

I personally like the powder brown better than the powder blue. Mine has grown quite fast in my 90 gal. and is very active.