View Full Version : GH, KH & Plants

03-31-2011, 11:11 PM
So, I've had the Red Sea GH & KH test kit for a long time and it is very difficult to use. I had determined as best I could from using it that my KH was around 2 and my GH in the neighborhood of 9 -10. I bought a new API test kit today and it was much, much easier to use and shows a KH of 4 and a GH of 13. I'm wondering if those are good/bad for plants. I have various types of swords, various types of crypts, vals, tiger lotus and dwarf sag. My brief reading up on the swords is that it is fine for them. The only of my plants that seem to be growing are the vals and the spiral crypt.