they mainly get brine shrimp with spiralina and blood worms . Some times the will eat hikiri pellets i put in for my cichlids and they also like eating zuccini i put in for my bristlenose
i have the ph at 7.4 cause thats what my tap water is. i have driftwood in my tank which lowers my ph but also have crushed coral in my filter to raise it back up to 7.4 so it dosent jump up and down when i do a water change