Currently I have a dual stage c02 regulator running to my 90 gallon. I would like to run it to another aquarium as well. I bought a dual stage c02 regulator off this forum from Bettatail. I currently have a fabco nv55. He said that it had screws for expansion. after i unscrew the screwsa what adapters would i need to run the c02. thanks
C02 expansion
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