Growzay one of the problems I THEORIZE will happen if you go to all vegetable matter in your AP system is you will start seeing trace mineral issues in your plants. Fish meal has alot of trace minerals or a higher concentration of them than plant material. We can achieve the36 percent crude protien with fodder or wheat germ for weight gain in our fish but the trace element factor will have to be supplemented due to the fish cant eat enough minerals to transfer that to our plant to promote healthy plants. Can this be done with worms, grubs, and insects, I hope so. But a large scale operator just cant do this and make a profit yet. Will soldier fly do this maybe but again you have the trace element loss. I know freeze drying is way to expensive to have any impact to date. So in a nutshell if you use all plant matter your fish weight gain will be much slower that fish meal. If weight gain is not a concern then the plants will feed your fish but you will have to supplement externally with minerals to meet your plants needs.