The Planted Tank Forum - View Single Post - Easier macro dosing
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Old 11-30-2006, 04:36 PM   #14
Are these real?
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I think that describes it well enough... with the fertilizer bottle and water hose, there is a hose going down into the solution, and the stream of water through the garden hose creates some vacuum and sucks the fertilizer out of the bottle. This here is very similar actually.

I promise I'll post some pictures by the weekend... just want to work out the first obvious bugs.
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