Hi Bro Your Peak is 45% but You Have to see the light distance from water to fixture..Its very low therefore 45% is quite powerfull..
But i dont think that is gotta do with anything..Thats a Octopus? Hammer? How do you keep those Parameters Stable? could be a flux
One more test your forgot Haha Its Magnesium..
cheers!
Rdgs Ash!