I would recomend some angel plus deorming flakes if the fish are still eating. Secondly, your feeding regimine leaves a bit to be desired, frozen bloodworms are more of a treat than a staple. Be nice to see a beef heart flake, and a good pellet in the mix, I feed new life spectrum pellets, a special beef heart flake with garlic from a forum sponsor over at simly discus, as well as freeze dried black (not blood) worms. The discus go nuts for the blackworms and growth is phenominal.