Carbon in filter sock? or in a chamber?

[kien]

fancy pumps that look something like this used to dose (pump) Alkaline, Calcium, and Magnesium concentrated solutions into your tank to keep your levels up. Certainly not a requirement, but if you plan on using a Calcium Reactor, a dosing station would be an alternative to that with added benefits. I too have an irrational fear of pressurized gas canisters in the house.