The Planted Tank Forum - View Single Post - Need help choosing chemicals for crystal red tank.
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post #2 of (permalink) Old 09-12-2013, 04:30 PM
Darkblade48's Avatar
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 9,867
You can use RO water to achieve the lower hardness that you are aiming for. In terms of pH, you can achieve that with CO2 injection.

If you are planning to inject CO2, I would recommend you use a solenoid, as it will help you save gas in the long term.

In general, about 30 ppm of CO2 is a good concentration to have. The amount that you actually are injecting varies depending on size of aquarium, diffusion method, etc.


A Primer to Pressurized CO2 and A Primer to Planted Tanks
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