Quote:
Originally Posted by Mike_D
It sounds like I'll have a good amount of time to get the cylinder refilled after I see the tank is getting low so I don't have to worry about being able to get it filled immediately.
- Mike
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It's not as much time as you'd think. It could be 4-5 days of pressure dropping, it could be 1-2 days. As long as you check it daily whenever you feed your fish as you get close to what you think is the life of the CO2 content and you'll be fine as you'll see it. Just either have a back-up tank or easy access to getting a refill. Be careful about leaving for a 3-day weekend or something around when it might be running low. Stories abound of those who missed it and it went empty on them and they did not catch it. BBA sits just waiting for those moments of serious fluctuating or drop in CO2. You could end up with a serious forest of BBA about 2 weeks later...