Freshwater Aquarium Test Kit

thingiverse

This is something I designed to help prevent spilling the test kits when performing water tests on the aquarium. My thought with the color insert was to show the acceptable ranges for pH (low range), Ammonia and Nitrite. The Nitrate shows 20ppm and 80ppm, if the water tests lighter than 20ppm it is ok but if it is 80 or darker I need to water change. That is what works for us, you can easily create your own color chart to insert. When I printed the insert, I did a color change for the words.