My tank is a 29 gallon tetra kit aquarium, and has been up and running with a few plants, and small fish for a month with little issue except for having to get a sponge filter, rated for 40 gallon because my adding more sand destroyed my back filter. I ordered more plants, (15 verities) and now knowing from you folks that it's best to only have lights on for approximately 6 hours to better control algae issues, my question is if plants grow and thrive with that little of light, or need I to keep lights on longer and deal with algae in different ways. At this time I only have slight indication of algae, but I want a lot more plants.