I am in the process of a new tank but I am wondering for a new hobbiest is it fine to grow plants in gravel because I want to create a jungle effect. But I have noticed my favorite YouTubers like fish for thought have used it in there beginer scapes. I am wondering if it is ok to use as a beginer. And additionally with a kh of 2 and a ph of 7.2 first off when doing water changes will it stress the fish out second how low does it reduce ph and kh for you guys.