At the moment I have a 24" Aqueon T-8 15w Full Spectrum 6500k light overtop of my 26 gallon bowfront. My tank is between moderately and heavily planted and the plants seem to be doing pretty decently for the past 5 months, but they dont seem to be growing as fast as they should, atleast in my opinion.
So my question is, what is the difference between; regular flourescent, cfl, t-5, t-12, t-8, and etc. wattage? I assume some are stronger than others and in turn require less watts to put off good light or something of that nature?
(Sorry, its late and I'm having a hard time wording things the way I want.)
I know generally there is a 2 watt per gallon rule, but my 26 gallon is running fine on 15 watts, which is making me really curious. I would also like to add more light, but dont know what I should have? If t-5 or regular flourescents can fit in a t-8? Should I just look for more wattage, or add another light strip?
Basically I'm clueless on lighting. What I do know is that the 6500k range is where you want to be, and that the rule of thumb for planted tanks is 2w/gallon but I cant find a single, affordable (to me) t-8 light strip that has high enough wattage to follow that rule.
I hope you guys can help me out here. Any advice or info on lighting and what requirements I should be meeting would be appreciated.