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Testing Equipment Gallery

ELOS Expert Line Aqua Test - KH
Hand Held Optical Refractometer
Salifert Calcium Test Kit
ELOS Expert Line Aqua Test - PO4
ELOS Expert Line Aqua Test Chart - PO4 (Phosphate) 6) Hold vial about 5cm above the white chart. Looking down from above into open vial compare color to color chart.
Salifert Phosphate Test Kit

Salifert Iodine Test Kit

This test kit is not very hard to do. However, it is very time sensitive. A few steps you only have a few seconds to complete.

The results of the test kit can be very difficult to read. It seems the more time you take to make up your mind, the darker the reagent gets, messing you up more.

I no longer bother to add or test for Iodine in my systems.