Tremor_Clown
New member
Hey everyone..
I am in need of help as to what is going on with some of my SPS corals.
Some acros/SPS are either faded/light pale color and bleaching, little to no polyp extension and honestly just don't appear happy/healthy.
This was going on for 3-4 months and I didn't think anything of it since they were growing. But just last night I noticed that a couple of my SPS corals, two in particular, have bleached tissue/dead spots and RTN'd. What i I don't understand is how some SPS are affected, but others are doing fine.
My tank is 60 gallons, flow is a korallia 1400 and a Vortech mp10 on reefecrest mode, a Vertex Omega 150 skimmer, and a Vertex dosing unit. The light is a 400w Radium on an old PFO HQI/HPS ballast in a Lumenbright large reflector on 6.5 hours a day. The light is 20 inches from the water surface and the tank is 16 inches tall. Levels are: alk 9, cal 400, mag 1250, nitrate 5 and phosphate tested differently at 1 and 1.2
I attached pictures pictures below. Any advice/input is greatly appreciated.
My guesses are either: alk too high, mag too low, phosphate too high, soft corals (xenia) are messing with water chemistry with SPS corals or possibly that the 400w radium in the lumenbright reflector (even at 20 inches high) is cooking the SPS corals (as it did to my chalice corals) and maybe I should downgrade to a 250w radium instead since my tank is only 16 inches tall. It seems like maybe
I am in need of help as to what is going on with some of my SPS corals.
Some acros/SPS are either faded/light pale color and bleaching, little to no polyp extension and honestly just don't appear happy/healthy.
This was going on for 3-4 months and I didn't think anything of it since they were growing. But just last night I noticed that a couple of my SPS corals, two in particular, have bleached tissue/dead spots and RTN'd. What i I don't understand is how some SPS are affected, but others are doing fine.
My tank is 60 gallons, flow is a korallia 1400 and a Vortech mp10 on reefecrest mode, a Vertex Omega 150 skimmer, and a Vertex dosing unit. The light is a 400w Radium on an old PFO HQI/HPS ballast in a Lumenbright large reflector on 6.5 hours a day. The light is 20 inches from the water surface and the tank is 16 inches tall. Levels are: alk 9, cal 400, mag 1250, nitrate 5 and phosphate tested differently at 1 and 1.2
I attached pictures pictures below. Any advice/input is greatly appreciated.
My guesses are either: alk too high, mag too low, phosphate too high, soft corals (xenia) are messing with water chemistry with SPS corals or possibly that the 400w radium in the lumenbright reflector (even at 20 inches high) is cooking the SPS corals (as it did to my chalice corals) and maybe I should downgrade to a 250w radium instead since my tank is only 16 inches tall. It seems like maybe
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