The Darryls and Large Marge seems to be doing great. Mark's Shrimp Tanks made a video a couple days ago about mineral rocks and I immediately ordered one (should arrive today). He makes his own RO water and reminteralizes it with the same stuff I have - but if he STILL needs mineral rocks for CRS, then I need mineral rocks for CRS. I'm using distilled re-mineralized water.
Another experiment is happening on the kitchen counter as we speak. (I'm at work) I want to make a rock pile like L.R. Bretz says he does in his shrimp tanks. He says it makes a "safe nursery" for the shrimplets. Makes sense. BUT, rocks can sometimes add to your TDS - which, as you know, I've struggled with. Since all my other parameters are solid, I don't want to screw that up so I put them in a bowl with distilled water. When I get home, I'm going to check the TDS. It was 3 when I left this morning. If it goes up at all significantly - the rocks will go into the endler grow out tank.
I'm blinding myself with Science!