envii Pond & Aquarium Test Strips, 5 in 1 Pond & Fish Tank Water Test Kit - Testing for pH, KH, GH, Nitrates and Nitrites for use in Garden Ponds, Fish Tanks, Aquariums - 25 Strips

Works well Simple to use. Great

Does what it says on the tube. Pond checked easily Thank you Functionality:Easy to understand instructions and range of findings indicating health of pond.

I like the simplicity of the product, no fancy vials and Ph/Nh tablets or chemical required, just dip the touch paper into the water and wait for the colour change.

These were very easy to use and the instructions are simple, although it does not say which way up to hold it (although this is obvious once you start).You simply wave the strip in the water for a few seconds and then hold in the air (without waving it around) for 1 minute, and then compare to the colour chart on the container.Mine said my pond was all 'OK' although it is super green and the various liquids I have tried don't work, so I think I need to try something else, but this product was useful for telling me that most levels are acceptable (pH, NO3 etc.).

Easy to use.

It does the job it’s supposed to

In my opinion these are okay if you’ve already used a more accurate testing method and simply need to keep an eye on levels until you perform the next major test.The changing colours on these strips, were not in my experience, that close to the printed examples on the outer case. Having spent my whole working life in the print industry, colour is something that is critical to me, so I’m probably more discerning than the majority of users.

Simple to use but not that easy to read. However it does give some indication of the quality of the pond water