"Ian Mather" wrote in message
. ca...
I'm just in the process of setting up my new 150 Gallon planted tank. I
am
trying to figure out how many Watts per Gallon I need to achieve the same
effect as I have on my 50 Gallon. My 50 Gallon has 160Watts or 3.2 W per
Gallon. The tank is 24" high. I know you need less Watts per gallon on
largr tanks, but since this one is fairly deep, I'm not sure what kind of
wattage I'm going to need.

TIA

Ian



I have 3 36 inch strips of lights (all that can fit in there)... they are
each 25 watt bulbs... and my plants are doing well...

Thanks for the info. That's what I wanted to know.

Ian
"Michi Henning" wrote in message
...
"Ian Mather" wrote in message
. ca...
I'm just in the process of setting up my new 150 Gallon planted tank. I
am
trying to figure out how many Watts per Gallon I need to achieve the
same
effect as I have on my 50 Gallon. My 50 Gallon has 160Watts or 3.2 W
per
Gallon. The tank is 24" high. I know you need less Watts per gallon
on
largr tanks, but since this one is fairly deep, I'm not sure what kind
of
wattage I'm going to need.

Going by the 2-2.5W per gallon rule, you'd need around 300-450W.
(This assumes that you will be using CO2 and fertilizer -- without those,
2-2.5W per gallon is too much and will invite algae growth.)

I'm using 2 150W metal halides plus 2 36W flouros on my 150 gallon
tank with good success.

Cheers,

Michi.

--
Michi Henning Ph: +61 4 1118-2700
Triodia Technologies http://www.triodia.com/staff/michi