At some point, the issue becomes power consumption. ($$$) That's where efficiency comes into play.
I second that...MY goodness!! You don't even need CO2 for that tank...LOL.How many fish are in that tank, susankat?!
About 300 endlers, 19 cories. 5 flagfish. 4 adult albino bristlenose and about 70+ baby bristlenose. And trying to catch those to put in another tank has proven to be a pain.How many fish are in that tank, susankat?!
That took about 4 months, you can get good growth without Co2 if you have the right amount of light. It takes longer without Co2.Ukrevitz, how did you get nice growth like that without co2? How long did it take?
The bulb is what gives the 'type of light' not the fixture. You can exchange most any standard or aquarium marketed bulb in a shoplight. And even different sizes to in some instances, for example my shoplights which originally housed T12's now have a bulb as small as a T6 (Aqua Flora Plus bulb).The shoplights are meant to give out the type of light human eyes sense, so if they look brighter than aqaurium lights, they are not necessarily stronger or better.