Hello everyone! I have had a 30gal FOWLR tank for many years now, but I want to start adding some coral. That means I need to up my water testing game. I have a high end pH test kit and a hydrometer for salinity already, but I know I'm going to need to test for nitrates, ammonia, alkalinity, calcium, etc. I'm on a bit of a budget (meaning in can't drop like $300+ on one of the fancy testers). Anyone have any recommendations/preferences for testing kits?

