He does not have the proper lighting he needs to survive. That is way it is exhibiting the behaviors that you are describing. The LFS claims your parameters are perfect? I would not trust that one bit. The best way to know what that your parameters are in line, is to check them yourself. Test strips are very inaccurate and do not trust them. Do yourself a favor and invest in a good test kit. What color is the nem? If it is white, it is bleached.