Yeah, I get the point.
I had wanted to have "one tank with a little bit of a sandbed" so I could keep things like my open-brain and plate coral properly (I feel these guys do better on sand). Although at the moment I guess it's a moot point. I lost my plate coral when I was in Hawaii because the Tunzes buried it in sand and my tank-sitter didn't notice and it never recovered, and the xanthid crabs totally went nuts on my brain one day and it too never recovered. Now I have a cube tank with a bunch of rocks, a 20" anemone, and a dozen crabs. I can't keep nothing but the anemone in there and it .. sucks.
I would like for it to be a softey tank one day but I have to figure out how to de-crabbify the tank, I can't *beleive* how many of them came in. The thing that really gets me is that I inspected *each* rock closely before putting them in the tank.
Guess this is turning into a bit of an off-topic rant now.. oops.
Anyhow I'm curious about things like sulfur denitrators and Zeovit. For me, to try this was $25 in ARM sulfur beads versus $300ish to get started on Zeo. Seemed like a no-brainer but I would still like to consider Zeo or Ultralith one day, but maybe in a few months once I get a couple other things settled first.