Silver and Blue's

These are the other five the silver's and blue's it hard to see which are which i am not that sure myself untill they turn in the light then its obvious . I am still doing everything the same as before as in the amount of water changes etc. But i have got my water back to how i like it. That is PH under 7 and TDS down to 160 it has no effect on how quickly they are growing in my opinion infact i would say they are growing quicker. I feed them 5 times a day mostly beef heart with some prima, spinach, flake, and those frozen cubes.