Feeding/picky eaters

[Finatic]

So I have a question about a couple of picky eaters. The 2 Checkerboard Turquiose I have are picky eaters. Everyone else in the tank just gobbles up anything I throw in the tank, but the CT's will only eat FBW and BH. My concern is they are going to end up stunted, as my Marlboro's, Melons and BD's are out growing them by quite a bit. I would hate for the CT's to be stunted, but they just arent eating like the others who have already outpaced them. They eat the BW's and BH, and would eat it all day if I let them, but I want to vary their diet (both for healthier fish and cost). Do I just not worry about it, and keep feeding like I have been, or should I feed more BW and BHG more often?

Here is my feed schedule

BH
Flake
BW
Tetra bits
Flake


Suggestions?