My local LFS talked me into buying a Lawnmower Blenny for my new 24 g Nanocube stocked with 18 lbs live rock, 20 lbs live sand, and 50% cycled seawater/ 50% new seawater. The tank was started 2 Sept. I realise it is too new for livestock now but I was following his advice. In any event, between the blenny and the hermit crabs there isn't much algae left. There was considerable brown hair algae but within a week it's all gone. Any suggestions what I should feed the blenny in order to keep him healthy? He's fantastic to watch and I would hate to see him perish.