Mars Fishcare North America 25 Count Ammonia Aquarium Test Strip

Really happy I purchased these ... after learning via PetSmart that our tap water was super low pH due to a shallow well which apparently killed our betta fish after 7 days. I got these to test our water with conditioner (yes, I was too lazy to take another sample to the store and I'm pretty sure they use these same strips). I also wanted to test our bottled spring water, which is what I use for our new fish (no added conditioner on my part). I learned with these sticks that our tap water, with or without added conditioner, is very low pH and our jug of spring water is perfect. Our fish is still alive (and very active) so I'm thinking these testers are very accurate. I may never need 20 of these but for $6 I'm glad I have them ... if we move, get a saltwater tank etc. Overview-you take a strip, swirl it twice in the water, don't shake off and wait 30 seconds (I found waiting a bit longer was more accurate). The color is a little off if you look 5 minutes later so don't wait too long). Done. Easy and accurate.

They work! I needed them for my above ground 2,500 gallon above ground pond. They seem quite accurate and I appreciated the instructions.

The Best !

I started using these as a quick and easy test for the hospital tank I set up. It comes back 0 when it makes sense. It also tested higher values which made sense as well: 1) anemone looked like it was going to die in my display tank, I put it in my hospital tank before leaving for the weekend. Sadly it died. I tested the water when I got home and it was maxed out on the chart for ammonia (makes perfect sense for dead nem) 2) I had a firefish die in the QT tank - must have been overnight. For a much smaller fish, having died recently, it reading around a .5 was probably reasonable and showed it could detect some mid range results as well I wish they were cheaper but they seem to be a fairly worthwhile rapid test. I’m ordering another set now

GREAT PRODUCT. API....ITS ALLLL ABOUT THE FISH:)

The plastic covered on top of the paper strip is so thick. It prevented the water to sip into the paper part of the strip. These 3 are from the same water. Only if you pop the top plastic to expose the paper, you won’t have a n accurate reading.

Wish it was Abit cheaper

use these as a third test check to make sure no nasty ammonia

I aint sure it is measuring anything. Use is easy but i am not sure the band really interacts with the water in an efficient way. But the fishes are alive.

A most important test kit. Ammonia can kill aquarium fish in very small amounts. Have been using the kit for many years to monitor the levels in the water.

Arrived early. So very pleased. Would recommend.

I bought these along side API 5 in 1 strips so I would be able to read all the necessary water quality readings. They seem pretty accurate so far, and are super easy and quick to use. I love these compared to the liquid ones with drops of chemicals. Way faster and way easier to read! I would definitely recommend these for water testing!

Reasonably good accuracy for a test strip (when compared to the results of a master test kit). It's quick and easy which means we'll actually test more regularly. We will buy this again.