For those that use them, which one do you like and why? What size tank do you have? My tank is roughly 300 gallons.
I am thinking about the Avast Marine K1. A friend has one and likes it. How much flow do you typically put through these? I've only ever added kalk to my top off water.
I am thinking about the Avast Marine K1. A friend has one and likes it. How much flow do you typically put through these? I've only ever added kalk to my top off water.