Variety is the key. Not much nutrition in brine and I suggest mysis. You can buy variety packs that have squid, emerald entree, mysis, brine, ...
I use mysis and dose it with zoe, vita-chem, zoecon, selcon, garlic (interchane them). I also use formula 1 & 2, chromomax and flake food. I also use seaweed strips for my tang and blenny. Again, variety is key.