The Grim Reefer
Ready for some NOBALL!!!
In a 15" tall canopy you would want to create a mount so the lamps can be 4~6" above the water. 16 overdriven T5's will get you more PAR than most 250 watt halide systems. Overdriving the lamps will mean you will need to replace them at one year.
There isn't a T5 system I know of that will produce more PAR than a 16 lamp Ice Cap retrofit.
There isn't a T5 system I know of that will produce more PAR than a 16 lamp Ice Cap retrofit.