Hey Mason ... Thanks ! ... I am using 4 X 400W MH 10K bulbs and 4 X 96W VHO Actinic ... the actinics are not running at the moment as it is a new hood that I got built from a local hydroponic store ... the end caps are installed but just have not had the time to complete the wiring ... I will have them running again in the next few weeks. The VHO are run by 2 X WH7 ballasts.

Cheers

They draw in water from the sides and depending on the pump ( pressure rated is best ) they can anywhere from double to as much as quadruple your pump output :eek: :cool:

http://www.kthsales.com/website/vend...tors/Bex-3.jpg

Because of the size of the tank I needed good circulation but did not want large powerheads or multiple powerheads ... I am building a arogrocrete " cover " for the eductors so that they will blend into the back wall and hopefully I wont see them at all :smile:

Chad check out the link Steve gave me, it explains it all... (wow)

Doug