krazykarl, I can't in all honesty say at what size they normally change, this is my first one. I don't have anything to compare it to.
Mine eats brine, mysis, krill, silversides, kalamara,I also feed a cube forumla made special for angels and tangs, can't remember the name off hand, I'll look in the freezer, but it contains sponge and other good stuff for angels, and seaweed select. Mine also enjoys a diet of corals, when they are avalable to him, which doesn't happen any more, hence the 30gal. He's a piggy and will try anything I feed the tank.
crazy4reefs, Thanks, I have a few more photos of the brain posted a few posts down, love the look of it at night.
Lisa