Things to watch for when changing lighting?

[JB NY]

Originally Posted by StirCrazy

so i will do both 24 inch of air and 25 inch (6" air and 18" water)

Originally Posted by StirCrazy

as for readings at 8" I personaly think that is to close to obtain a totaly true reading with the apogee sencors,

I'm confused, or maybe I was not clear. I did my reading at 8" from the bulb, so I'd like to see if you could do yours at this distance as well, before going into the water. You originally stated you were going to do it at 6", correct?

As for 8", it should be fine for the apogee sensor, I had two licor sensors I was able to check the apogee against at 8" from the lamp. The Apogee on average was only off around 2-3% from the Licor.

-Joe