The Planted Tank Forum - View Single Post - Building UGJ, need advice
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Old 11-16-2012, 06:29 PM   #9
rrastro
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You're more likely to have pressure differences from the front to the back of the line if you set the tubing in a spiral. A grid or manifold provides the same filtration effect using less tubing with even pressure across the system. 1/2" will work fine in this type of setup, with only one pump needed. I had a smaller pump running a similar system in a 20L. Wash the heck out of whatever substrate you use. I used turface and even with thorough washing the system blew out fine dust into the water as the substrate degraded from the constant flow of water.
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