While I work on removing more trees and getting my backhoe repaired I am looking into growing my own invertebrates. Since one can buy worms and bugs at the bait store my thinking starts there.
I have used worms and crickets many times when fishing. Growing worms appears to be fairly simple although it won't produce much. I am looking at growing crickets. I have a garden that produces lots of extra green bulk for them and I have dogs for some dog food dust. I make my own mulch for substrate. About all they would cost is a light bulb or heating pad running and a little bit of work. Mealworms are interesting as well.
I am still in brainstorming mode considering what bug(s) to grow.

Based on your advices I will be making my pond much larger than .02 acre trying to get to .12
Deep as I can.
Removing more surrounding trees to minimize leaf buildup and increase sunlight exposure.

THANK YOU!! All the best!