12-07-2013, 02:03 PM
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So Forest, the bottle is attached directly to the intake? Is there a coupling or does it fit on? Looks like a very efficient intank filter. I have often thought about doing somtihng with my powerheads to help with biofiltration. Somtimes I wrap a sock of filterpad around my intake to quickly fiter out large debris, but I've never considered addind a chamber for additional media. Really nice idea. I'm thinking about somthing using your bottle idea that would attatch directly to the outlet nozzle. The water would blow through the media and then out into the tank through holes drilled in the bottom of the plastic bottle.
Thanks for posting, I love this type of diy project...eaaasy, inexpensive, and effective. $17 powerhead, then just used bottles and media. Nice