do you have a glass aquarium cover on yours? i was reading in another thread that someone suggested the ray2 over the fugeray if you have a cover...guess i'm not sure if i should keep a cover or not.
I don't use a cover. They do block some light, especially when they get dirty. I am careful not to spray anything near my tanks though. I love the open top look, plus it makes everything easier such as feeding, dosing ferts, etc.