Hello guest! Are you an Apistogramma enthusiast? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Apisto enthusiasts to meet online. Once you join you'll be able to post messages, upload pictures of your fish and tanks and have a great time with other Apisto enthusiasts. Sign up today!
I use both a test kit-Sera makes one that reads into the lower ranges needed for soft water fish and a pH meter-HM digital. I use the pH meter almost daily and use the test kit as an occasional back up to make sure the meter isn't to far off. Calibrating the meter regularly is essential though.
Sera is an over seas brand that can be a little hard to find in the states. I like their line of products so much that I found an import source and buy their test kits, plant fertilizer line, and a few foods in quanity.