Earthworms might be okay, just have to make sure they are purged out from anything inside of them first. I think to do that, you would have to starve them a little in a wet container, and let them poop out any dirt and grit first, and then feed them.
As for feeding feeder minnow fish and etc, personally, I wouldn't recommend it.. it's risky, especially if you just got them from a LFS, because the fish could be hosting parasites and bacteria and you don't want that in your parrots or other fish. If you want to feed feeder fish, then I'd say you should breed them yourself and make absolute sure they are super healthy, dewormed, disease-free from the inside and out, before feeding them to fish.
Have a good one, bloodylucky.
As for feeding feeder minnow fish and etc, personally, I wouldn't recommend it.. it's risky, especially if you just got them from a LFS, because the fish could be hosting parasites and bacteria and you don't want that in your parrots or other fish. If you want to feed feeder fish, then I'd say you should breed them yourself and make absolute sure they are super healthy, dewormed, disease-free from the inside and out, before feeding them to fish.
Have a good one, bloodylucky.