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Your cart is empty.Many factors can affect the water in your aquarium – changes in pH can be caused by the breakdown of waste in your tank, or local tap water with low pH or low alkalinity. Maintaining the proper pH level of aquarium water is important to ensure a healthy environment. Tetra® Correct pH® Tablets maintain the recommended pH levels in your aquarium to help reduce stress due to harmful fluctuations. Use Tetra® EasyStrips™ aquarium test strips to determine the pH level of your water and treat as necessary. Add one Tetra Correct pH Tablet to each 10 gallons (40 liters) of aquarium water. To avoid drastic pH changes, check the pH 24 hours after treating before adding more tablets. For aquariums 40 gallons or larger, dissolve the tablets before adding to your aquarium. Treat monthly to help maintain ideal pH levels in your aquarium. Each tablet is pre-measured and ready to use. Contains 8 tablets Since 1951, Tetra has developed the world’s most comprehensive body of fish food knowledge, and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor.
Tyler Stewart
2025-09-03 17:08:08
Great value for the money compared to other stores
Taylor
2025-08-13 13:17:49
If my fish tank is ever not balanced I put this in and the results are immediate. It’s cheap and super effective and if helps keep my fish safe and happy. I’ve been using this product for over a few months now and my fish tank has been perfectly balanced.
Jor El
2025-07-29 10:14:17
I was rather skeptical of the product Correct pH Tablets by Tetra, but after using them, I simply fell in love with them. It is very easy to use- just drop the tablet into a safe place in your aquarium, and it just fizzes away, doing all the work for you. I have a 40-gallon tank, and these balanced out the pH perfectly within less than 24 hours. So impressive, that I've stopped testing my pH level on a routine basis, trusting these tablets to keep my tank in a perfect state.What's even better is that you don't have to use them as often as the instructions suggest. I usually use two tablets a month on my 40 gal tank and it still manages to keep my tank well balanced. The dosage of each is easy enough to adjust, based on your tank size-just break the tablet in half for smaller tanks or add more for larger ones. It's really hassle-free, and my aquarium has never been healthier.I've purchased this product continuously over the last several years and Amazon's pricing and delivery speed have always been excellent.
Chase
2025-07-26 14:03:46
Works
Colby
2025-07-19 16:09:42
Works really well at helping balance a tank
Seraph of the Indigo Sea
2025-07-02 09:11:21
Have purchased more expensive brands to compare. Tetra is just as good as brands twice the cost. The water quality is easy to test, keeps tank clean and at proper ph levels
Customer
2025-06-21 12:01:12
So I have test strips and I have a 3 gallon betta tank but we have hard water and high ph. Well I started with a half tab and added it … didn’t do anything. Waited two days and added a full tablet well this stuff makes the water beyond cloudy and develops a type of film resembling plastic bags. I did a partial water charge and when doing so I was amazed at the layer of film I saw I’m hoping when I come home from work the filter does its thing and filters some of this film not really a happy camper.
JP
2025-06-04 18:56:44
I was struggling to get right pH balance for my fish tank - did everything I could without using pH balancing tablet/liquid to get water normalized but nothing was working. Local pet shop suggested using one of the product from their shelf but it was expensive. Found this tablets to be 1/5 of the price and it did the trick for my water. Tablet direction says use 1 tablet for every 10 gal. of water, but I would suggest using 1 tablet for up to 20 gal. of tank and check results. I used 2 tablets in 20 gal. and it did sway results in other pH direction.
RIC
2025-04-27 21:49:44
ok
Tylicia T.
2025-03-06 18:23:59
Great product to buy in bulk for ph balance & works at it should
Jen Monahan
2025-02-03 16:54:18
Seems like the sticks read that everything is perfect in my tank, but a couple of my fish died and my Betta doesn’t seem to be doing well even though I’ve done partial water changes as suggested. Not sure if the sticks are accurate or not.
Emily
2024-12-18 16:56:53
Didn’t work that well, or at all
William
2024-11-29 10:33:37
gets the ph to a correct level
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