I have a 55 gal tank with the Marineland DB 36" model for lighting. So I got home today and my GF decided to go and get one of them floating moss balls today and it was in the tank when I got home. First question is this lighting even bright enough to keep this alive? Also if anyone has had experience with this moss ball thing, do I need to add anything to my water to keep it alive if my nitrates are always around the 20ppm range? Any ideas how to keep the ball suspended in the water rather than it just sinking to the bottom? If it rolls over the bubbler it will rise up but then fall immediately once out of the bubble stream. I like how they looked when they were just hanging mid way in the tank like some of the ones I have seem.