View Full Version : T5 PAR Question

07/10/2012, 06:41 AM
I have a 65 gallon tank 36x18x24. I was told i would need a 6 bulb T5 setup vs a 4 bulb setup. My question is this: does havign 6 bulbs give you more light penetration than 4 bulbs? If so how? Or does 6 bulb just give you more light coverage?



07/10/2012, 06:50 AM
It would increase PAR to some degree simply because you're tossing more photons per square inch but not actual penetration. To increase penetration you would want to:

A) Increase wattage (over drive ballast)
B) Improve Clarity (better water conditions)
C) Improve Reflectors... I read somewhere that a high end Individual Reflector can increase the amount of light striking the water at an optimal angle by over 100% (The number was higher than that but I can't for hte life of me find the article..it's been over a year)