What's the general consensus for how often ordinary backyard earthworms can be fed to a large c/a cichlid? I have an 11-inch T. Sieboldi who loves her pellets, but eschews other foods such as krill, frozen bloodworms, etc. I've tried varying her diet using peas, tubifex worms, lettuce, staple sticks, but she spits out everything except the earthworms. I know they're pure protein, but I don't want her getting bloated or constipated. Any insights would be appreciated. Thank you.