How much light to grow java fern in 160g tall
Hi, my tank is 6ft long, 20 inches wide and 27 inches tall. I have no plants in it atm but im gonna have a java fern JUNGLE in there so how much lighting would be good for such a tall tank. I currently have an 8x 30w t8 fixture that came with the tank. It has 2 switches so I can choose to have either 4 or 8 bulbs running however I'm not using this fixture atm as the bulbs are like 3 years old and very dim and I prefer the look of the arcadia 2x 39w t5ho im using on it. None of the fixtures have reflectors but I was looking at getting 2 for the arcadia t5's. I wont be running c02 and probably not using ferts. Can I grow java fern with 2 39w t5ho 6700k tubes with reflectors?
Any help will be appriciated,