Hi!!!
Oh! Use of a PAR Meter! Sold, I just signed up.
So, the size of my tank, I have the AquaTop and the is 21.7 X 21.7. So I am good their.
I didn’t think of the height of the light. I just measured it at is at 8” above the tank. I put my lights on at 100% all blues/purples and 15 % all...