I got a pair of peruvian rams a little while ago, and they seem the enjoy staying at the bottom of the tank, its a 75 gallon, and right now theres 13 rummynose,6 guppies, a pleco and these 2 rams. I use flake food but all the guppies and rummies grab it before the Rams even have a chance to notice its there. What should I do? Ive never tried frozen or live food before but im willing to give it a try.