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Discussion Starter · #1 ·
I am using an Aquaclear 70 and another generic HOB on my 46 gallon tank with pressurized co2. I am injecting the co2 into a sweetwater stone and having the powerfilter catch it and push around the tank.

Problem is with the 2 HOB's i lose tons of co2 and don't get enough co2 in the tank.

Can someone recommend some things that might help?

I've thought about buying a XP2 or XP3 [not sure which one would be better, if the XP3 is overkill or not]. But I'd rather for now not spend the money and try to get better co2 with the HOB's.


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