I actually like to make my own fish food for what we are trying to do. I go 1:1 with my protein source, usually fish, to fruits and veggies. You could use your wasp larvae if you have enough as your protein source. Add the other part fruit and veggies, not citrus obviously. Bananas are good as well as apples, apricots, peaches. A higher content of plant based material in the food the higher the phosphates. Still have to have plenty of protein so the fish can stay healthy. Cucumbers are excellent because the skin carries a decent potassium content, spinach for iron and leafy greens and other fruit to fill out the rest. I also add in fermented fruit juice and calcium phosphate from my Korean natural farming supplements to flavor it up to the fish’s liking and feed other nutrients simultaneously. Blend it all up and freeze it in freezer bags no thicker than a half inch or you will probably have trouble cutting it when it comes time to feed the fish. i have bluegill, catfish, and crappy. the bluegill and crappy tend to not go crazy over it. They seem to prefer the mealworms and any other bugs i can give them but they do eat it. The catfish frenzy over it and my goldfish are happy to eat it as well. Hope this helps.