I recently acquired a 1.5 years old 9" male marble ray. The previous owner told me he had him on bare bottom tank for awhile and said that's why he got so dark but light substrate, time and pellets will bring him back to normal. I'm thinking he was kept in hard water too. Had him for two weeks now and he has lighten up a bit but wondering if he will ever look like his old self again? Also does hard water permanently take away color and patterns? I already asked a few people already but just wondering what everyone else thinks especially those who has had experiences with marble rays in hard water. Thx for any infos.











