my planted tank is a 180, very densly planted and currently i have over 300 watts per gallon of old compact flourescent bulbs. my problem is that they create a lot of heat, as in the tank doesnt need a heater to stay right around 80 deg f. ihave 2 t5 bulbs already, and im thinking about going to all t5s, ho or regular either one. does anyone have any personal experince with this situation? I do use c02 also, and i dont want to ruin my high light growth and color. it woudl be nice to have less heat and less power consumption though. what does everyone here think?