Okay, so I have done all my research on Japanese Fire Belly Newts and have been in the process of making their tank. So far I have about 7 inches of water in a 20 gallon long tank with plants and emergent rocks and stones. It is now cycling with a small filter and 5 guppies. Do I just wait now. Is an air-stone necessary. How long does the cycling take. Can I use the same water test kit I use for my saltwater reef tank? Please and thank-you.