Aluminum or fiberglass window screen ??

[E-A-G-L-E-S]

I will be acclimating my tank from 2x175W to 2x250W and want to use the window screen to lessen intensity......which kind?
(i do not shorten my photoperiod, just decrease intensity and every few days remove a screen)

Thanks for any help in advance!

 

[tekknoschtev]

We used fiberglass, but it really depends how close the screen is to the halides. Our 400W halides were 10" from the screen so it didnt burn, but if it was much clser, it likely would have melted.

 

[E-A-G-L-E-S]

The bulbs are avout 4.5" from where screen would be.