I have a good freind that grows lowland nepenthes with tap water and he has been doing it ever since he got into them. And I was wondering if it is ok to do it. I just started watering my highland nepenthes with tap water less than a week ago and everything is fine, but I was wondering if the nepenthes will grow better with RO water.
The last time I checked the water was around 280 ppm
any advice is great,