Montipora Capricornis

[Justin Thain]

Hello local reefers. I need help, as I am banging my head, and not sure what to do.

I was given a Jedi Mind trick montipora capricornis (see attach) that is no longer green as it should be. Its currently all purple in color. But appears to still be growing, although at a very slow rate. I am lost as to why it lost it's color, as I have tried different lighting color schemes, different levels within my aquarium, and flow. I also have some different montipora capricornis which has now dullied in color (green originally, now grayish / bright red originally, now pale red), and then I have another montipora capricornis which developed a rather large white spots on it. Obviously things aren't right in my tank, but I need assistance as to which path i need to take.

List below is info which might help.

Salinity - 1.026ppm
Ph - 8.20 (day) - 8.05 (evening)
Magnesium - 1350
Calcium - 420
Alkalinity - 9.5dkh
Lighting cycle 10am - 10pm
Lighting - LED provided by radion ECOtech (model rx15 pro) 4 of them. intensity is at 45%
Tank - 150 gallon (tall)
Phosphate - 0.30 (tested by hanna checker)
Nitrate - 10-15ppm
Nitrite - 0
Ammonia - 0

Thanks

 

[Matthias7]

Any possibility you had an Alk swing? I recently had the same experience (my Alk dosing tube was clogged). I have since corrected my Alk and my monti's seem to be recovering. My Jedi mind trick was the worse off the declination has stopped but it doesn't look good.

 

[Justin Thain]

Any possibility you had an Alk swing? I recently had the same experience (my Alk dosing tube was clogged). I have since corrected my Alk and my monti's seem to be recovering. My Jedi mind trick was the worse off the declination has stopped but it doesn't look good.

please define swing.....I thought as long as I was between 8-11dhk I was ok. I try to keep it around 9, but it goes between 8.75-9.5

 

[Matthias7]

Mine dropped from 8.4 to 6 before I caught it. If your stays in the range you describe it would be hard to pin it on Alk imo.