Too much Watts?

[toofazt]

Is it possible to have too powerful of a light? I have a 40 gallon tank with two 20w bulbs, I am going to soon get a 130w coralife light for plants so that would be 170w of light in a 40 gallon aquarium. I'm just wondering if my low light plants would still survive, or if I could only get high light plants.

[sephir420]

ive never had any luck with plants. i would asume that it should be fine. but i always endup killing my plants. there is a planted aquarium guy hear so hopefuly he can answer this for you.

sorry im not much help. :headshake

[rayman45]

2-3 watts per gallon