I've been feeding all sorts of cichlids bait shop earthworms for years with no issues.
For an added bonus, you can put them into a bowl of oatmeal with liquid vitamins for a few days before feeding to clean out their guy of dirt and hopefully gut load them with something more beneficial.
For an added bonus, you can put them into a bowl of oatmeal with liquid vitamins for a few days before feeding to clean out their guy of dirt and hopefully gut load them with something more beneficial.