A friend of mine gave me a compact light retro kit and I was planning
on putting it on my heavily planted 10 gallon breeding tank. However,
it is 90 watts. I can put it elsewhere if that is a problem, but is
it? I have always struggled to get enough light and this has never
come up. Maybe the algae will go crazy? So, how many watts per
gallon is too much? And what are the consequences of too much light?