GEO calcium reactors

[t5Nitro]

Is a calcium reactor really that helpful? If so, how are the geos? Thanks.

[Paulairduck]

I have had my 612 on line for six months, and it keeps all params stable, it took about 3 weeks to dial in, now when I check my calcium and akalinity every sunday, bam, right on the money. I use all Geo equip, top notch, to say the least!!

[McCrary]

I am really pleased with my GEO, the quality is top notch and the price makes them really appealing. Get the 624, for another $50 you won't have to touch it for a long time.