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"NO Water Changes" Video


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@kahjtheundedicatedThe System is called a passive delivery CO2 system - the designs are pretty simple, you have to secure the vessel (most people use drink bottles Gatorade bottles are pretty sturdy) to the side of the tank, but also have to weigh it down just enough to keep the bottom of it level with the water level - he attaches a few rocks but anything heavier then CO2 will work. You then use a CO2 bubble wand without the stone of the end and add CO2 until the vessel is full - expelled all or most of the water that the C02 displaced. Here’s a video - 


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