speaking of detritus and overflows:
Tip of the Week: Crytal Clear Water
If you want crystal clear water, buy some Calcium Carbonate (CaCO3) minimum 97% purity. Amazon sells this. It's basically chalk in fine powder form. Mix 5TB to 230ml and put it into some squeeze bottle. At night time squeeze out about 4-5ml of it into your water. Your water will be cloudy for some time but in the morning it'll be crystal clear. The CaCO3 does not dissolve and does nothing to your water chemistry. What it does do is bind to detritus and helps push it into your overflow. This is basically the active ingredient in KZ Coral Snow but without the Zeovit price.
Crystal clear water on the cheap.
http://www.nano-reef.com/topic/364821-diy-kz-coral-snow-with-97-purity/