Api Ph Test Kit 250-Test Freshwater Aquarium Water Ph Test Kit, 4 Piece Set

I’m satisfied with the item but not with seller shipping, as item came fully damaged!!

I thought this product was a really good product, accurate in description and that if this product says my fish tank water is fine- then it is. However, after using this product since ive had my aquarium, my fish started developing a sickness, as well as ick and looks pretty 'worse for wear' at the moment, although each time water has been removed and replaced and checked with the API kit it has always shown a PH of 7.5 (very light golden colour), even though the water has been murky looking.So after several weeks and many water tests, i decided to do another check, this time with a) tap water, B) hot water (which contains more chemicals!, C.) aquarium water that was treated as well as D) mixing it with a small amount of vinegar and guess what???....... ALL RESULTS STAYED THE SAME ! EVEN WITH VINEGAR!! so no, i dont recommend this product at all and now have to wearily buy another Nitrate testing kit because this is in fact FAKE! will contact amazon to inform after this review is put in as they sell it, but do not produce it! i'm disgusted to be honest.I now have a sick fish and all along the 'test kit' doesnt work giving me no proper reading whatsoever! AVOID!

These should be included in the ‘Master Test Kit’ as standard, as they are an essential test but they are not in the kit.I initially thought that there should have been a colour chart included, like the other API tests, however these work by counting the drops until the colour changes.KH - Blue -> YellowGH - Orange -> GreenThis includes two extra test tubes which is handy it’s just a shame there isn’t space to store it all in the Master Test Kit box.

We use rain water for replacing the water in our aquariums, which naturally is very clear unlike our tap water at times. One problem however is that rain water lacks nutrients and carbonate hardness, so I need to add supplements. This GH and KH kit lets me keep an eye on these levels.The kit includes two bottles and two test tubes with caps. At a first glance it appears simple to use, i.e. with a 5ml sample in the test tube, add a drop of solution, cap and shake, then repeat until the colour changes. In reality, the cap is very stiff to place on the test tube. After repeating the steps a few times, some liquid ran down the outside of the test tube and as I tried capping it, it slipped from my fingers, flew across the table and smashed on the floor.Once I managed to test the KH and GP and using a paper towel to dry the test tubes before capping after each drop, the test reading itself is very simple - The colour changes from blue to yellow for the KH reading or from green to yellow for the GH reading. It includes a chart that shows the readings for the number of drops added. Personally I would prefer if it included a bung instead of a cap as it is quite tedious trying to pull off and replace the stiff cap after each drop, particularly when it can take 6 to 9 drops to complete each test.The guide mentions that the bottles must be held vertically upside down for accuracy, so I'm not sure about the accuracy with being unable to fully invert the bottle without it releasing multiple drops. With other test kits, I need to squeeze the bottle to release drops, where as the bottles with this kit starts releasing drops before it is fully inverted.There is also a warning to wear protective gloves, protective clothing, eye protection and face protection and to only use outdoors or in a well-ventilated area.

This is excellent if your kH is at or above 1, and you only need an approximate idea of your kH. For most tropical fishkeepers, that's more than enough information. It's ridiculously easy to use, although it can be tricky to see the result if your kH/gH is under about 3, as the colour is so faint. Two tips:1) Stand the tube on a piece of white paper, look down the test tube. It makes it much easier to see the colour2) If you can't tell whether the kH test is yellow or blue, it's yellow. In good light, the Blue is fairly obvious even after one drop, while the yellow still looks transparent.If you want a blackwater biotope with a <1 kH, but maintaining the presence of carbonates, there are other products which are better for you. Similarly if you want to know the kH with greater accuracy (ie to greater than an accuracy of 17ppm-ish or 1 degree kH).

I know 10 and 20 is bad enough but here a printed test scale is bad. 10 and 20 also 40 and 80 have same colours.....Test detects small amounts of nitrates quite well.On the photo is result of tap water in London before and after filtration. Pretty high nitrates! But are they 40, 50 or maybe over a hundred?