[ReefKeeper69!]

Slightly off-topic... Sulphur-based (LSM) Denitrator...

I had long thought I might like to build a coil denitrator, but the current method under research is using an anaeorbic bacteria colonizing a sulfur-based media... CaribSea's LSM. Since the output is somewhat acidic, that is followed up by an arrogonite media chamber. This forms the basis a nitrate reactor, to consume nitrates in a similar fashion to the coil denitrator, and add CA as well. Still need to add buffer, but it may offer higher capacity than the traditional coil denitrator.

I haven't seen too many designs for these devices yet, but it's essentially a ganged fluidized bed, or slow-flow media chambers in series with one another... LSM feeds the aragonite chamber. You could use a pair of phophate reactors, potentially, to get the job done. This appeals to me more than the coil denitrator method...

Just thought I'd stir the sump some!