Looking to buy a CO2 or kalk reactor, auto top off

[zrs6v4]

I am looking for something to balance my calcium, PH, alkalinity.... anyone have any suggestions on what to buy, or have one to sell? Also if you think this is a bad idea to do on a 120 gallon let me know. . I just think there has to be an easier way to maintain than dosing these things maually... thanks

 

[laurentb]

what do you have in your tank ? if you don't have a big demand in Cal & Alk, using a Kalk reactor should be OK to maintain your system. But if you do have clams and sps, Cal reactor can be a good investment.

 

[zrs6v4]

I have a clam already so I am thinkin a calcium reactor is what I need.. I also plan on having a fewe different tangs, so I may need to keep that alkalinity up at a high but safe level...