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6 Posts
I have learned alot on this site it has been a great source of answers for me. I now have a question. I have been using 1 2 litre bottle for my CO2 mix and it only goes about 10 days in my 75. I read on here about doing 2 bottles together can someone please explain how and how often I would have to change them. both at the same time? How do I tie the 2 together or do I use 2 diffusers in the tank? Thanks for the help..:help: