Guilty?

[thewaterboy]

Volt man is right....your lighting is off. double check the watts. i assume you're using the standard fluorescent lights. I use the standard fluorescent strip light for my 75G...im pretty sure it's only 40 watts. it sounds like you're lighting up a reptile tank..not an aquarium.

 

[thewaterboy]

by the way, im not saying you did a bad job with the calculations. i tried to figure some of the that stuff out last year....im in dental school and i could hardly do it. so nice work.