Lindy
Member
Hi, I use tap water and had used a variety of things to raise the tds. It is only since using Mosura mineral + to add to my tap water that I seem to have halted the shrimp deaths and achieve a berried female. I know that I may lose more shrimp but I'm hoping that the discovery that my TDS pen was out by 20 might help stop that. Ask Basil about tap vs ro, he didn't flag that as a potential problem in my tank.