actually, if you want him to get full color, you might try switching to 10k bulbs when you change bulbs, Favia can change color to adjust to lighting, my
green favia was that green when i bought it
after a few months it turned mostly brown due to low lighting, here recently i discoverd that corals produce more Zoox under low lighting wich can turn them brown, higher light more color, color is pigments used to shield thereselfs from intense lighting. this has also been seen with
SPS corals such as Acroporas
