Otohime seems to be what most folks are weaning their fish with. I have only been able to find it in large amounts 1 or 2 kg and it is about $50. I have found another food that looks similar to Otohime, in fact, it looks like it has a bit more protein. Its called GP Diets and Brine shrimp direct carries it. Anyone ever tried the stuff? They have different sizes like Otohime as well. http://www.brineshrimpdirect.com/c1/c11/GP-100-200-Micron-Larval-Diet-c30.html