breeding conditioning foods??????

I think most people prefer using live foods to condition fish. There are a couple of options--some easier than others.
Live Brine--you can purchase the eggs and raise them yourself--the larger ones require feeding to maintain good nutrition, and this means having a couple tanks of them at different stages. Not difficult, just takes up space and requires maintenance to keep the tanks from stinking and killing off the shrimp. The newly hatched ones are great for fry, but too small for most adult fish.

Live blood worms can be a vector for disease, but you can control that. Purchase them, and immediately rinse them with clean water and put them in a container in the fridge. Change out half the water every day, and they should last for quite a while. The worms don't actually harbor diseases of fish, it's usually transported in the water with them, so you can control this.

Vinegar eels are another option. These are easy to rear--you just need an apple and some vinegar/water in a jar. A culture is usually pretty cheap, or you can start your own with unpastuerized apple cider. The eels are very small, but will stay alive in your tank for a while, and my male betta loved them.

Microworms are also easy to culture. Starter kits are cheap, and though need a bit more work to keep than the vinegar eels, they are a fantastic food source for small fry.

Earthworms are okay, but you may have problems chopping them into small enough pieces for a betta to eat. Give it a try--I buy worms from a bait shop for many of my fish.

Have you tried frozen foods? They are often more acceptable to fish than the dried forms.

not a beatta expert, but thought I'd throw in a suggestion. If earthworms work, but are too big go to a local bait store and get redworms typically used for panfish bait. they are much smaller and thinner.