Quote Originally Posted by snow owl
Look good, maybe just some white polysheet to aid the flouros.
agree'd you're losing alot of light .. put something to reflect the light back..

also, if you cover the one side to reflect the light back, you could put a fan on the one end..and the air would travel through the cinder block and give a nice breeze and exchange of air... this will be needed if you have the plant in an inclosed space, it will also control the temperature.