So i just tested my PAR again just to make sure I was close to where I was before with the G3's now that the G4's have been up for a week.
I had lowered the overall intensity from 95% down to 80% and I'm still getting slightly higher numbers with the G4's.
But what is really interesting is that the PAR actually INCREASES as you go away from the center of the puck!
In other words, if I start with the par meter directly under the puck, and then move it towards the front glass, this PAR increases as it gets closer to the glass.
And this effect becomes more pronounced the farther down I go.
Up high, there is little change or the par numbers decrease like you would expect.
But as you go farther down, par increases as you go out.
Example.... around midway in the middle of the tank my par is somewhere around 250.
In the middle of the tank but close to the glass, my par is still around 250.
Closer to the sand bed, directly under a puck, my par is 220.
Closer to the sand bed and at the front glass, par is 240!
Very very interesting.
I would say that overall, with the G4's I have a more even spread of PAR across the entire tank.
Here's the before and after. And this is with lowering the overall G4 intensity slider from 95% to 80%
The blue numbers are near the sand bed at the front glass.
The yellows are as close to the center of the tank as I could get.