
I find the water hardness quite strange, it sometimes shows a purple color when it's not even an option. I was concerned it would be inaccurate based on this and some reviews so I bought a more expensive liquid test kit and got similar results with nitrate, nitrite and pH.

Fluval A7551 CO2 Indicator Kit
9 Review

π¦ Comprehensive Water Quality Analysis: ICP 33-Elemental Test Kit - Single Sample Kit
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FUNSWTM 7 in 1 Aquarium Test Strips: Accurate Water Testing for pH, Nitrite, Nitrate, Chlorine, GH & KH Levels
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π Hanna Marine Alkalinity Checker HC - HI772: Accurate & Efficient dKH Measurement
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Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review

π§² Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review

Jasonwell Magnetic Aquarium Fish Tank Glass Algae Cleaner - Floating Brush (L Size)
37 Review

Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review