What a difference a new bulb makes.
Hey Darren,
How do you know when the bulbs need to be changed. Can you check them with a light meter or something?? (sorry for the duh question). I don't even know how old mine are. I never thought to ask. I am having a horrible diatom bloom right now. Arggh. I hope it isn't the damn bulbs!!
Christy [img]images/smiles/icon_smile.gif[/img]
|