the plants in my vivarium aren't growing well...much at all. and i had some moss die. so i decided i had bad bulbs in (just 2 15W basic tank bulbs from a pet store) and went to home depot and got a 14W compact spiral fluorescent light to put in (60W output). now it seems insanely bright in the tank haha. is this too much light? when everyone is talking about their lighting im a bit lost in the lingo and im not sure exactly waht i should be running. the output for these bulbs are 800 lumens. thoughts?