Simon has highlighted something that is not right with your water parameters.
You should not be getting detectable nitrites.
The more important parameter to address as a priority is to reduce nitrite, the tank just needs to be cycled properly. You can try supplementing with beneficial bacteria. How big is the tank and the filter? A small tank and filter with lots of shrimp/fish can mean that there is not enough surface area for beneficial bacteria to grow and thus show signs of nitrite build up.
The KH of your water is too high, likely due to the water being well water, which is usually filtered through sand, stone and material that release carbonates. As for reducing KH, you will have to change water sources, to something like rainwater or Reverse Osmosis. Don't use KH down chemicals, which will just introduce a whole different problem.