JamesC
Fishaholic
This is a hotly debated topic with people standing firm on both sides of the argument. UV can't remove anything as it is not a filter. What does happen is that is breaks the bond of the chelator in your chelated traces (strong light does this as well). This supposedly makes the iron unavailable to the plants. I along with many other people run UV 24/7 in a planted tank with no probs. If you dose iron weekly then I'd probably not run UV but if you dose every other day then you should be fine.
