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#### ToYoTa

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4X65=260 Divided By 55 Gallon =4.73 Watts Per Gal.

Am I figuring this right 4.73 per Gal.

I read if I put two 15 watt on top of a 10 gal that I'll get 15 watts of light not 30 watts to get 30 watts i have to get a 30 watt bulb. does this relate directly with my 4 x 65 watt set up? Am I only getting 1.19 watts per gal. on my 55 Gal?

#### Naja002

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Not sure where You read the other stuff, but just take the total watts and divide it by the gallons like You did.......roud:

HTH

#### jebarj90

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Ive got 2x55 and 2x65 on my 55 and its working out great youve got me beat by 20 watts so youll be doing real well!

#### ToYoTa

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Ive got 2x55 and 2x65 on my 55 and its working out great youve got me beat by 20 watts so youll be doing real well!
I just changed two 65 50/50 for two GE 55w. how is your plants are they pearling with this set up?

#### BlueRam

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4X65=260 Divided By 55 Gallon =4.73 Watts Per Gal.

Am I figuring this right 4.73 per Gal.

I read if I put two 15 watt on top of a 10 gal that I'll get 15 watts of light not 30 watts to get 30 watts i have to get a 30 watt bulb. does this relate directly with my 4 x 65 watt set up? Am I only getting 1.19 watts per gal. on my 55 Gal?
WPG assumes fluorescent T12 bulbs so the approximation that PC's are close enough holds. Now 30 W of fluorescent is a lot more light than 2 X 15W incandescent.

#### ToYoTa

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Yea ram, why dont it apply on 4 65w also

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