This is what I feed mine:
1. Azoo 9-in-1 Guppy Pellet “for guppy and livebearer; plus immunity”
Ingredients: white fish meal, corn meal, flour, soy bean meal, spirulina, cod liver oil, squid meal, krill meal, mysid, yeast powder, carotenoid, lecithin, glucan, PSB, multi-vitamins, calcium phosphate, sodium chloride, choline.
2. Dried artemia shrimp.
They seem happy with the food. When first introduced into the tank they didn’t eat much in the first 2 days, but now they look forward to mealtime. Their colors also have improved a lot since they started living in my tank. Photos coming soon…