Used DIY calcium reactor for sale

[Tomoko Schum]

I have an used DIY calcium reactor for sale. It's been working really well on my 180. It is a whole house filter converted into a calcium reactor. I am asking for $40. It is just a reactor. You will need a CO2 system (a cylinder and a regulator) and a small pump such as Mag Drive 2 for circulation.

I am selling it because I got a new GEO reactor for birthday.