I am new to the shrimp keeping hobby and have watched my 15 shrimp dwindle to 11 in a few weeks. (3 gallon tank seasoned for 2 months, shrimp introduced to tank 2nd week of Feb.). It looks to be molting issues. I am contemplating switching from my treated tap water to remineralizing RO water using Salty Shrimp. My question is, how do I go about switching? I realize I am not going do an entire tank water change, so…how much and what do I use as a stability point with each water change since my tap water in the tank already has it’s own pH, gH, and kH?