I currently only have ph test kit, and need to go out and buy some new stuff to test my water. Can someone please tell me what test kits I need. I dont' really have teh cash flow for a 70 dollar kit either. I am tryign to work on a budget. All I need is a quick list fo the most important things to test, so I know what I need to buy. Thanks in advance guys. I am just gettign into this planted tank thing, and not havign too much luck.