API COPPER TEST KIT 90-Test Aquarium Water Test Kit

I recently started using the API GH & KH Test Kit for my freshwater aquarium, and I must say it has been an incredibly helpful tool for maintaining a healthy tank environment. Here’s a detailed review based on my experience:**Ease of Use:**The test kit is very straightforward and user-friendly. The included instructions are clear and easy to follow, even for beginners. Testing both General Hardness (GH) and Carbonate Hardness (KH) takes just a few minutes, and the color changes in the water make it easy to get accurate results.**Accuracy:**The API test kit provides reliable and consistent readings. I compared the results with a digital meter, and they matched up perfectly. Knowing the GH and KH levels helps me adjust my water chemistry for optimal conditions, especially for sensitive fish like cichlids and shrimp.**Functionality:**Having a tool that measures both GH and KH in one kit is incredibly convenient. GH helps monitor essential minerals for fish health, while KH is crucial for stabilizing pH levels. This kit makes it easy to detect changes early, helping prevent pH swings or stress in my fish.**Value for Money:**For the price, you get a high-quality, reliable kit that will last quite a while. The included bottles have enough solution for numerous tests, making it a cost-effective option for regular water monitoring.**Overall Impressions:**The **API GH & KH Test Kit** is a must-have for any freshwater aquarium enthusiast. It’s easy to use, highly accurate, and helps ensure your water parameters are within the right range for your fish and plants to thrive. I highly recommend it for hobbyists of all experience levels.**Rating: 5/5**Reliable, accurate, and easy-to-use water testing for a healthy aquarium!

Used this to test my aquarium water—worked great. Instructions were simple, and results were clear. Good value and reliable.

If ph is what you're concerned about this is a good little kit. Does the job and is simple to use.

I worked in three pet shops as a teen and later managed the salt water department in a very large pet shop in Philadelphia. I have kept fish since I was five years old but have been on hiatus for the past 20 years and not had any tanks.These kits have been around for ages and are very accurate if you use them for their true intended purpose; freshwater community tanks or similar. Don't try and use the nitrite or ammonia for saltwater tanks of any sort (even though the kits say the can do salt water, they don’t do it well). Don't use the pH test kit for tanks that need exact pH values for high pH animals like cichlids (though this is less of a problem if you read below). These tests are extremely economical and provide many more tests per dollar than any other kits available.My son is six and my daughter is four. We decided to raise tadpoles twice this year and needed to monitor ammonia, nitrite, and pH. The 40-ish year old design of these kits still fit that bill perfectly and were exactly what we needed. I wish the scale on the pH kit went higher, but it goes high enough for community fish. Tadpoles here tend to like higher pH values of ~8.2 and the pH kit doesn't go that high. However, I got a rough enough estimate if the pH test indicated that the pH was off the chart high as water isn't going to go much above 8.2 unless you use chemicals inappropriately to alter ph.Ammonia and nitrite test kits worked perfectly as in the past and averted many potential tadpole disasters and crying children. We've kept snails, clams, some minnows, and loads of plants in the tank while the tadpoles have developed so the bio load was always changing.Still great kits even after 40 years at a very affordable price.Highly recommended for their intended usage scenario.

little confusing at first but it works great unfortunately it’s plastic containers. helped me restore my shrimp thanks and keep everything healthy.

I'm using with the Ammonia Test Kit together with this. I did a deep research and found out this is better than the strip one.pros: Very accurate and easy to use.cons: I wish they make the "pH Down" solution bigger than "pH up" because usually we want the water to have lower pH level (depends on the fish type but, generally).

Seems far more accurate than test strips. Worth a couple easy extra steps to know what the ph is. Use this if you don’t want to buy an electronic tester.

I do use APIs master liquid test kit and felt I also needed to test GH and KH too which the master kit didnt have.The tests work fine although it threw me off a bit in that these tests work by counting the number of drops it takes to make the 5ml of water change colors instead of a fixed number of drops and determine the color like the way the master tests do.I really miss the glass test tubes they used to provide. The plastic tubes they now provide can be stained with chemicals over time and the caps get broken off. Usually the plastic tubes are done for long before using all the test liquids. Also the 5ml line on these plastic tubes are hard to see. Of course the good thing is that they dont break as easily as the glass ones did. But at least you get new tubes with new test kits.My city tap water has periods of very hard and sometimes only minorly hard water with a pH changing from 7.4 to 8.0 depending on the season and city's ever changing procedures. Sometimes it can be one way on a Monday and by Friday the tap water can be very different. This kit lets me know when I need to do a bit of chemical doping to bring tap water more to where my tanks should be.The more you know about your water quality, the more you can make plant and fish environments comfotable for them.