Hi, I don't have fish yet, I'm about done cycling but before I get the ember tetras I wanted to get some feedback on water parameters. My municipal water is pH 6.8, and Gh and Kh 2, I experiemented with some aragonite sand in a baggie in the filter, my Kh rose to 3, but my pH rose to 7.6. Ember tetras need a pH around 6.6 is what I've read and a kh of at least 5. What is worse, if I use the water without aragonite to give them the right pH or with aragonite to give them the right Kh? I've read all kinds of conflicting info so any advise would be vvery appreciated!