Hi all,
I have a question about lighting and depth of tank.
I have the All Glass 150 which is 72 x 18 x 29 according to their specs. The 29 is from the bottom of the tank to the very top. If I measure from the top of the sand to the water line it is about 25". I have the Lumen Bright pendants, 3 of them that have the bulbs approx. 15" above the water line. So the sand to the bulb measurement would be about 40". I was told to do it this way so the water didn't get so hot and the fans could circulate below them. Anyway, with all these measurements, should I be using 250w or 400w bulbs. Right now I use 250w 12k Coralvue Reeflux bulbs (single ended).
I am afraid that 400w will burn whatever is high up in the tank yet on the other hand I am worried that 250w is not reaching the bottom at maximum potential.
Whant do you guys think?
Thanks,
David
I have a question about lighting and depth of tank.
I have the All Glass 150 which is 72 x 18 x 29 according to their specs. The 29 is from the bottom of the tank to the very top. If I measure from the top of the sand to the water line it is about 25". I have the Lumen Bright pendants, 3 of them that have the bulbs approx. 15" above the water line. So the sand to the bulb measurement would be about 40". I was told to do it this way so the water didn't get so hot and the fans could circulate below them. Anyway, with all these measurements, should I be using 250w or 400w bulbs. Right now I use 250w 12k Coralvue Reeflux bulbs (single ended).
I am afraid that 400w will burn whatever is high up in the tank yet on the other hand I am worried that 250w is not reaching the bottom at maximum potential.
Whant do you guys think?
Thanks,
David