Using Carbon in an SPS tank...

[Lance]

Originally Posted by lastlight

Obviously replacement relates to volumes (tank/reactor) and what the water is actually like. I also monthly but just because. I'm not aware of any way available to us to detect when it's depleted. Is there a way?

There is a test that reads UV transmittance through seawater. You read the DOC before and after the carbon filter.

[Lance]

Originally Posted by Lance

There is a test that reads UV transmittance through seawater. You read the DOC before and after the carbon filter.

Myself, like the rest of us, don't bother with some expensive test. I change it every 4 to 6 weeks.