Calculating PAR

[Casper T.]

Hi

I have measured the Par level on the surface to about 900 PAR. Is there a way to estimate/calculate PAR level in the water depending on the depth?

 

[Lasse]

IMO - Nope no good one. The water colour, particles, reflections and so on always have impact of the real PAR. You need to measure in your own aquarium at different depths.

Sincerely Lasse