Last night a saw these crossflow fans at an electorics shop. They push heaps of air at 9v and fairly quiet. I have it blowing air on the side of my cheap ebay T5 fixture (just for my 30x8x8 nano)
PAR at water level is 800.
PAR at water level with fan on is 975.
20% more PAR from a simple $20 fan. VERY COOL.
http://www.jaycar.com.au/ShowLargephoto.asp?id=10137&IMAGE=
PAR at water level is 800.
PAR at water level with fan on is 975.
20% more PAR from a simple $20 fan. VERY COOL.
http://www.jaycar.com.au/ShowLargephoto.asp?id=10137&IMAGE=