IT IS RELATIVELY easy to purchase and raise the beneficial insects you want in your garden. There are three main reasons to raise beneficial insects.  As mentioned on the Beneficial Insect Management, you can raise beneficial insects to protect your organic garden from pests. 

INSECTS CAN also be raised as a food crop.  Not a human food crop (unless you're into that sort of thing) but for...

animal food.  Specifically in Aquaponics systems that use carnivorous fish species (crappie, trout, catfish, etc) , you may choose to feed your fish organic homegrown food rather than buying fish food from a food store, especially if you are planning to harvest your fish for eating.  The types of insects you would grow for your fish and poultry are mealworms, soldier fly larvae, and earthworms.  These insects are very high in protein and are easily raised. Click the image link above for a video on building a Soldier Fly Larvae Compost Bin.

THIRDLY:  for decomposition and to help your compost piles convert to fertilizer quicker. 

BELOW ARE links for insects/eggs/larvae and some other products you may want for your insect raising venture.

Lacewing Eggs	1500 Ladybugs	Praying Mantis Egg Cases
Trichogramma Wasp Eggs	Red Wiggler Earthworms	Beneficial Nematodes
Encarsia Formosa Eggs 1000 ct (White Fly Control)	Nematodes with Applicator (10 Million)	Mealworms (Live) qty 2100
Predator Mites for Spider Mite Control	100 Isopods - Roly Polys - Pill Bugs	Insect Habitat for Newly Hatching Praying Mantis and Butterflies
	Insect/Bird Netting

MEALWORMS are easy and low maintenance source of protein for poultry and fish.  This video  demonstrates how to build an affordable, low maintenance mealworm farming setup.

THE OLD FARMERS Almanac has been a go to source for all things farming and gardening since time immemorial...  Here is a great article about creating an inviting home for ladybugs within your garden space. (click the image above)