Since day one (3 weeks ago) this red rhodactis always looked like this in the pic. Is this normal or is it dying/bleaching? I don't have any test kits so I cannot provide any water specs. He's currently at the bottom of my tank with medium- low flow. The lighting consists of 2-175w MH and 2-48w flour. Tank is 4x2x2 125 gal. Temp and SpG is ok. Nothing is around it to physically harm it. Just need some input. Thanks.