Hey just some advice from my experience with a setup literally identical to yours... I upgraded to a bigger tank with white substrate instead and my blue diamond instantly looked so much better. With a dark tank, they'll all darken to blend in, which can hide the beauty of certain discus' colors. So some day when you upgrade, consider lighter gravel - you won't regret it
Sent from my SPH-D710 using MonsterAquariaNetwork App
Sent from my SPH-D710 using MonsterAquariaNetwork App