Montipora whiting problem

Tham121988 · Feb 28, 2019

I have a red cap monti that has done exponentially well since I bought it a few months ago. It’s just been growing, but within the last few weeks I’ve seen some very weird bleaching. I don’t know if he has gotten stung. I didn’t move a war coral away from it just in case. Just new spot appearing. It’s the only thing in the tank having issues at the moment. I have some other montis that are perfectly fine. Is it possible to become light sensitive all of a sudden? I haven’t changed it at all. Here’s a pic.

Backreefing · Feb 28, 2019

Giving water parameters helps .
And could have some creep settled onto it ?
Pests ( montipora eating nuddibranch )

Tham121988 · Mar 1, 2019

Backreefing said:
Giving water parameters helps .
And could have some creep settled onto it ?
Pests ( montipora eating nuddibranch )

Salinity 1.025
Nitrite 0
Nitrate 10
Ammonia 0
pH 8.3

I don’t test any other parameters on this particular tank. So I have no readings for magnesium etc.

I don’t see any salt creep on my equipment. It’s possible about a pest, but why only that montipora? I have a 8-10 inch diameter montipora near it and nothing. Also have another Jedi mind trick monti and it’s fine. All other coral are fine. This one is directly below the light and mid tank. The others are offset. But I only have a kessil a80 on it and at 70%. It was growing fine and I never changed any of the settings so not sure why it all of a sudden started to occur.

Backreefing · Mar 1, 2019

IMO alkalinity is very important. I would have checked that first . It may have burned from lights ? I’ve herd kessel LEDs are powerful. As far as pests , check at night with a flashlight. If you have more montipora then chances of pests become more with introduction of every new peace . Just throwing that in .

Tham121988 · Mar 4, 2019

Backreefing said:
IMO alkalinity is very important. I would have checked that first . It may have burned from lights ? I’ve herd kessel LEDs are powerful. As far as pests , check at night with a flashlight. If you have more montipora then chances of pests become more with introduction of every new peace . Just throwing that in .

Thank you for the reply. I was out of town for the weekend and upon returning it has gotten worse.