mine are not very shy, of coarse if i run up to the tank they scatter but if i walk up like normal they continue to do their thing. i have pool filter sand as the substrate, and it really takes their color away they are almost white with pearls and their black markings. im assuming they are still settling in, thats why i havent tried to snap any more pictures just yet. i do not have a background to the tank but i DO have a nice 3D background on the way from "Designs by Nature" im hoping that + time for them to settle in will make their colors come back.
If i do feed them frozen(thawed) brine shrimp, how often should i feed them this? im feeding NLS pellets as their staple, but how often should i feed them brine shrimp? Im nervous to feed them different things, due to me losing 9 festae fry out of the 11 i had due to bloat

Any tips?
also when do these guys start being aggressive to one another? atm they are almost schooling together with the biggest one out of the bunch being brave and exploring on his/her own. I also observed that each one of them has almost their own uniqe body shape and black patterns. I will post a video tonight when i get off work