Help With Lights - 75 Gallon Want 3-4 Wpg

[killudead]

hey there,
I have the chance to upgrade my lights.
Right now i am using 3 32 w bulbs.
I was thinking about this one.
http/www.drsfostersmith.com/product/prod...mp;pcatid=12109
I would like to see i can get some lunar lights in there as well.

or this without the lunar lights
http/www.petsmart.com/product/index.jsp?productId=2753923

and add this later
http/www.aquariumguys.com/48in-aquarium-moonlight.html
Thanks for all responses

 

[Nick16]

why do you want 3-4wpg especially on a 75 gal. you WILL get algae. that is far to much. 2 wpg on a large tank is plenty.

 

[killudead]

why do you want 3-4wpg especially on a 75 gal. you WILL get algae. that is far to much. 2 wpg on a large tank is plenty.

really??
What about the plants that might need a higher lighting requirement?

 

[Truck]

2 wpg is enough for very plant you want to grow, its an american myth

 

[Nick16]

ona tank with 20L you might need 3-4wpg but on a tank with 500L 2 wpg is plenty.

 

[killudead]

ok, well thank you for clearing that up.
right now i am around 1.3 wpg.
I will need to be around 150w to get to that range.
Should i just buy another light or what?

 

[aaronnorth]

2 wpg is enough for very plant you want to grow, its an american myth

i wouldnt go as far as saying it is an American myth lol, maybe it is, i dont know but generally most Americans think that 4wpg is needed. Dont generalise too much.

Another light or even a whole new ficture such as a pendant or luminaire would do.