So a lot of CRS keepers use mineral rocks in their tanks, I belive it helps out when using RO water to remineralise and helps the colour in the shrimp. would it be ok to use these mineral rocks in a tank with neocaridina varients? I use tap water that has low gh/kh, 3drops in each using API hardness kit, I'm not super sure on hardness and its effects. My ph is around 7 in my tanks, would mineral rocks have any negative effects? If it was to change the ph value would it raise or lower it. I can link to the rock if needed, it is rocks though, not the little conditioner ball things.