Frist let me explain something so your friend can read it for himself. The reason water parameters are important when deciding how to treat for a specific issue is that some medications (in particular the ones needed here) have a range where they are most effective and beyond that where they are also safe. Used incorrectly they can not only be less effective but can also become toxic and deadly. You asked me for help which I am more than happy to give you, however if I don’t have the information necessary to give you a safe and effective treatment I would rather not give any advise. Perhaps someone else might be willing to offer a suggestion.