TetraTetraColor PLUS Tropical Fish Flakes, 7.06-Ounce

Q: Can i feed this to yellow africanchichlid?d

Depends on how large they are. If they are small to medium size it should be fine but then you should start supplementing with something like frozen brine shrimp.

Q: Can this be used for frehwater fish, eg glow fish (not tetras)?

Tetra is the manufacturers name. It isn't meant to restrict use to one type of fish. Their web site say it can be used by all tropical fish. I feed it to a Beta.