snakehead95

i have a knife, a gar and a snakehead that eat feeders, will my livingstoni, tiger oscar, and malawi blue dolphin eat feeders, too

Slug

Possibly, yes, and possibly. In order of the fish you asked about.

Allie

I hope they aren't all in the same tank. NOT all cichlids go together. Malawi cichlids should be in a species only tank 1 male to 3 or more females.
Of course an oscar will. But I wouldn't feed them any feeders myself not without quarantening them first. Frozen shrimp unthawed is a healthier treat for all your fish.