The Planted Tank Forum - View Single Post - Need help choosing chemicals for crystal red tank.
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Old 09-13-2013, 10:49 AM   #3
Fluval30CRS
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Unfortunately i am only a primary school student and only get pocket money and therefore I can't pay for RO water every week.

I would love to be able to run co2 on solenoid at 30ppm but there is one major problem, crs can't handle the Ph change at night so What I am really asking is will I need to have extra o2 injected at night so they don't suffocate and what ppm I can run during the day?
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