Trying to figure out PAR with Radion Pro XR15

[RedAnt78]

I put my radion in my 29 biocube hood and am trying to figure out the PAR. I am using the wide angle lenses and am looking at the AquaticLog calculator, but it is set for the radion being 8" from the water surface. Mine is only 3" from the surface. Any ideas how I can calculate par from 3"?
Thanks for any help!

 

[Rakie]

I put my radion in my 29 biocube hood and am trying to figure out the PAR. I am using the wide angle lenses and am looking at the AquaticLog calculator, but it is set for the radion being 8" from the water surface. Mine is only 3" from the surface. Any ideas how I can calculate par from 3"?
Thanks for any help!

That's too close to the surface of the water. The --MINIMUM-- amount of space suggested is 8".. More is better.

Get the RMS, build a jump screen for your BioCube, it's what I did.