t5 par penetration


New member
does anyone know just how deep t5's can actually penetrate? i have a 40 hex tank that's about 36" deep and i was wondering if i could use my t5 set up on it? thanks guys


New member
not sure about 36 inches I know my par reading on my 120 is 168 at its lowest point. It would also depend on what bulbs ballast and how many


New member
I dont think the bottom of the tank will get much light even with the individual reflectors on a 36" deep tank t5s dont seem to penetrate as far as metal hallides