"Martin Streicher" wrote in message
news:2004090610244675249%supergiantrobot@NOSPAMncr rcom...
I elected to go with a kalk reactor from ecotech. Simple dosing and a
well-engineered system. I'll wait and see if I also need a calcium
reactor (with CO2), but hopefully, the aragonite sand bottom will be
enough.


That's cool. Alot of folks use Kalk reactors. Just keep in mind that at the
pH we run our tanks, there will be very little to no dissolution of your
sand. Sandbeds play no appreciable role in maintaining Ca/Alk.

FWIW,
Kev