API TEST STRIPS,For Variety of Water Parameters,Monitor aquarium water quality and help prevent invisible water problems that can be harmful to fish,Use weekly and when problems appear,25-Count (33F)

This is a good price for as many strips as are included. The stores sell smaller packages at a much higher price per strip. Just dip it and use the code on the side. Works fine.

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.

Use twice a month just to keep the tank running well.

these are a fraction of the cost the pet store sells them for.

Good price for the quantity. I've only used them a few times and they seem to work fine.

Good product

Can't really tell if the measurement is accurate or not.

Easy to read and great price