Hello I recently swapped my lighting from 3 hydra 52hds to 4 radion xr30 gen 4 pros. My question is where should I start with the intensity for the new setup. I have the radions on the rms rail that mounts to the tank. Tank is a 6ft 125g. I don't have the ability to check par right now. What should I do now that I switched over the lighting.