wickerman said:HI
i have a 20 gal tank and i have 3 watts of lighting per gallon.
The thing is, my light tubes are not reflected,thay just sit on the top of my drip tray.
So what im asking is...when you work out your WPG,are thay based on reflected tubes ?
djlen said:The do sell reflectors separately and they would be more effective than mirrors.
Len
lousybreed said:believe it or not the shiny side of aluminum foil makes a good reflector