"Alright, now what do I need?"
You might say this when you find out you need a test kit, because there are so many out there. You have to think about what brand, what type, freshwater or saltwater, all the works.My personal brand is Red Sea, though you might have a different opinion.I think that when you get a test kit you should at least get Ammonia, Nitrite, and PH.Although it might not be what you need. First you need a test kit with a tube in it. Then, you need to know if it is a trusted brand(I discourage using generic brands). After you have established this, you need to know if it is what you need, PH, Ammonia, Nitrite, Nitrate, Ozone, Copper, and many others. Once all this is done, you must find the right price and place, and purchase your product.