How often do you change your co2 tank

[cilyjr]

on your calcium reactor?
and what size is the co2 tank?

 

[mnavick]

Hope I'm getting the sizes correctly.....
My 1st 10lb lasted about 6months, but think I had a bad regulator.
My new 20lb is going over a year, maybe have another 2-3 months left.

A big contributing factor is the size of your reactor and the need of your output.

 

[cilyjr]

no i know...i think my regulator has a leak somewhere im using a lot of co2 for some reason. i'm talking 20lbs in about 3 months

 

[this is me]

Do a foam soap test.
I go through 10lbs about 6 months I would say. But my tank is heavy loaded with trace elements pigs.

 

[dz6t]

I go through about 20 lb in 5 month for each 500 gallon sps system