Anyone every try using hydrogen peroxide in their tanks? I was given some advice to dose hydrogen peroxide, 1ml per 10g for 3 days, then 2ml per 5g for 3 more days to help fight some algae issues in my brother-in-law's tank. He's noticed much better water quality, the algae has stopped growing(but has not died off) and his SPS polyp extension and color have improved noticeably. I've read that dosing will kill of good and bad algae, so I'm not trying it, but it is interesting...