I have a coralife light and yes real plants, filled with plants, I have a co2 system. The tank is 6 months old and the algae has been around for like 3-4 months. Light are on for 7-8 hours a day.as above, no fish is a real 'soloution' to algae in the long term.
The brown alage that you are talking about is very common in new tanks. If the tank is given time to settle it will usually disappear of its own accord.
How long do you have the lights on every day?
Do you have any real plants in there?