All surfaces must be free of dust

Micron - 70

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Tetra Test pH - Freshwater 10ml (59 Tests0 Complete Parrot/Parkeet Mixes All surfaces must be freeMeasures the pH value reliably and precisely Liquid test Test water parameters Freshwater aquarium etra test pH is a measure of how acidic aquarium water is. Fish do not like fluctuating pH levels, and some need to be kept at specific pH levels. How it Works The TetraTest pH kit is a liquid kit, which works by changing the colour of a water sample in relation to the pH level. You simply need to compare the colour of the sample to the enclosed colour