Green Montipora Digitata Problems

[ReefRuf2012]

I bought a colony of Green Montipora Digitata about 3 weeks ago. When I purchased it, all the polyps where out and was bright green. Since it has been in my tank, they have never really extended and has started to brown in some areas. My polyps on my SPS (Valida Acropora and Blue Millepora Acropora) are all extened at night and during the day. I recently noticed some light bleaching at the base of my Blue Millepora Acropora. I have been monitoring my water conditions closely and my ALK is 9.5 Calcium is 435, Magnesium is 1560 and salinity .025.

My tank is a 75g with a 29 g sump. I have a bullet2 persision marine skimmer, three power head at 1600 gph. Aquatic life 4 bulb T5 with ATI lights. 15K white; 2 blue plus specials; and 1 Giesemann purple.

What could the problem be and how should I fix it?




Thanks in advance for your help

 

[Bugger]

What do you feed it. Corals recive 85 % of there food from algae and the rest from nutrients. you need to test nitrate.. Im guessing shipping stress. I dont think you have enough light get a par meter

 

[cvilleh2o]

My green digi did the same thing. Moved it to the top and it colored back.

 

[ReefRuf2012]

I tested Nitrates and they came out 0. Also tested ALK and it was 9.8. PH 7.8. I moved the Monti higher and closer to the light. I am also looking in to LED fixtures maybe two Aqua Illumination.


Thank for yall help

 

[Felixc395]

I tested Nitrates and they came out 0. Also tested ALK and it was 9.8. PH 7.8. I moved the Monti higher and closer to the light. I am also looking in to LED fixtures maybe two Aqua Illumination.


Thank for yall help

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