Try putting your flakes in a container/cup of tank water then dump that in the tank, this will saturate the flakes and cause them to sink, rams and tetras are mid- bottom dwelling and feeding fish plus the wet flake is easier for fish to digest. One can also buy sinking cichlid pellets, they come in different sizes for different sized cichlids for rams get the smallest size, omega one is an excellent brand that will also enhance fish color, your neons will also eat these as will your cories.