Radion Brightness Level ???

[1stPhantom]

What brightness level should you put on a ecotech radion xr30 gen3 pro on 40g breeder 2 that are stagger within 2-3 inches of each other roughly 9inches from the water top mixed reef with acros at the top and hammers @ top middle and decent water movement on the top

 

[TX_REEF]

it's tough to answer this question without considering PAR - for a mixed reef like that you'd want ~300-400 on the top of the rockwork and ~100 on the sanbed. Would be best if you could buy or borrow a PAR meter, I use this one: https://amzn.to/4cVgllU

plugs right into your laptop, easy to use.

 

[frofan]

My g6 xr30 at 9” above water was putting out 300 par at the sand bed at 60% intensity. The tank is 22” deep.