This year is the start of a testing Revolution in the hobby. Here is a device created by a R2R member Drernesto. https://www.reef2reef.com/threads/1200-litres-tank.176537/
With this tester you can use what ever liquid test you want to use. Salifert API,Nyos.....
With this tester you can use what ever liquid test you want to use. Salifert API,Nyos.....