I'm not trying to bore anyone with repeated questions but I'm just starting out and only have petco and petsmart's around where I live. I did a lot of searching and still am not sure about my readings. So I testing everything in my tank today and found.
After reading and reading so many posts and websites this is what I came up with. There are two ways to get the water parameters right for the CRS.
mix 50/50 ro and tap water to test and to get to the right chemistry for the shrimps (add more Ro or tap to get to the reading.)...