My new sulphur denitrator setup

[Delphinus]

Originally Posted by danny zubot

Further to this comment; Could you use the system to work as a Ca reactor on a smaller tank? I've been debating building a coil denitrator for some time now, but this contraption would serve two purposes for my tank if it could be configured to work.

You could, but I still think it's not the greatest idea. The reason is you're trying to tune it to reduce nitrate (and the fact that it adds some Ca/Alk is just a happy bonus), not trying to tune it to maintain Ca/Alk levels in the tank. Ie., Ca and Alk will get used up at rate "X", NO3 will be added at rate "Y", you want to tune your sulfur reactor to match "Y" and you're stuck with whatever Ca+Alk rate that it produces. If that's less than "X" then it's not going to maintain the tanks Ca and Alk. Whereas the Calcium reactor is directly tunable to the Ca and Alk.