My system is working really well since I added four fluorescent lights. My problem is green algae is taking over the top of my grow bed. Lettuce and Basil seem to be happy but my wife is concerned about the algae. Is the algae bad or harmful? Will it start to grow on the lettuce and Basil.
My water pump runs every 20 minutes. After the grow bed fills and empties, the water continues to run through bottom of the grow bed. Could this be part of the problem?
Green in Philadelphia PA