Quote:
Originally Posted by fishsandwitch
Why do you need a pop bottle? You can just stick the tubing into the inlet of the powerhead.
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Well the power head likes to suck my plants up against the inlet screen. With the pop bottle, it is big around at the base so it doesn't suck to hard right up close and it leaves the plants alone. It works like a python gravel vac. I can place the bottom about an inch from the substrate and it also will not suck up the sand but still able to blow a lot of water. The bottle is only about 3 inches from top to bottom and is clear so its easier to hide. It also works as a bubble counter and lets me see real clearly the C02 bubbles to make it easier to count them.
Joetee