I haven't fed him the spirulina but you bet tommorrow I'm off to find some, he gets super worms the whole hikari from staple to bio gold and gut loaded crickets now and then hes only about 10 months old or a little less so I have a lot of time to really bring him around, I have escondidos that I hope will turn out as nice as aquamojos did ,pics in the " today in the fishroom " post .