Well my brine shrimp kept failing and they were too small for daphnia, so all I had was the Hikari First Bites powder and infusoria that I made myself with some shredded lettuce (which was all I had in my fridge ?). I bought some green water from the lady I got the daphnia from when they were a week old and started giving them that too. I also put 3 moss balls in there from an established tank and I'm pretty sure they were eating the tiny white worms (planaria?) that appeared out of nowhere on the glass. They are almost 3 weeks now and I just added frozen brine shrimp and frozen bloodworms to their diet, which I chop up as small as I can. I have only lost 6 [knock on wood] and I know their colors will change, but right now I can see lots of blues (dark/royal as well as turquoise), some red, a few white, some that look purple and some that look like a chocolate brown, and a couple that look golden. Can't wait to see what they end up looking like!!!