Right on there. You want him to explode, feed high protein foods and do two water changes a week instead of one. 30%-50% each time. "The General" is 10" and about...well, I think about 11-12 months old. Toss in some shrimp now and then. A shrimp ring from the grocery store can last a while, just break off a couple, stick it back in the freezer, and thaw the shrimp in a mug of hot tap water. FreeNinety9 is 100% right with the water changes, even with just a good staple food he'll be a monster in a few short months.