For limited time only!
Reduce disease-causing bacteria and parasites.  Stop them before they get into your tank!
A clean way to store RO/DI water for your aquarium.
Custom-made sizes to replenish evaporation with RO/DI water.
Black acrylic towers to hide your plumbing
Left and Right Corner Overflows, 3-sided Center Overflow (pictured), Floating Surface overflows ... custom built to your specifications.
Get one of each!
Get a couple of new super soft t-shirts for your collection.  Pre-shrunk sizing.
150 Gallons Per Day
Stop hauling water back from the store. Filter enough water for even the largest tanks conveniently at home.

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If your club or group is looking for a public speaker, I'm happy to discuss such arrangements.  Usually it is best to plan a few months in advance to adequately publicize the event and ensure it is well-attended. I've...

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For a long time now, I've followed discussion of extension tubes for macro photography. And a few years ago, I looked up what they cost and quickly dismissed them. However, in the back of my mind, I kept thinking "what if those are really what I need to get these stellar macro shots?"  Probably a year ago, I considered getting them again. I talked to someone that had them, and to someone else that had used some... one person said I could use the cheap plastic tubes (less than $10) and I'd be happy. The other person paid $200 for the Nikon brand specifically because it...