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๐ Keep your tankโs vibe just right โ because your fish deserve the perfect pH!
API PROPER pH 6.5 Freshwater Aquarium Water pH Stabilizer is an 8.5-ounce treatment that precisely sets and maintains aquarium water at a pH of 6.5. It detoxifies tap water by removing chlorine, chloramines, and heavy metals, creating a safe, stable environment ideal for freshwater fish species such as Tetras and Discus. Designed for use in tanks without live plants, it supports both new setups and ongoing water maintenance, backed by APIโs 50+ years of aquatic care expertise.













| ASIN | B0002AQMW8 |
| ASIN | B0002AQMW8 |
| Best Sellers Rank | #47,667 in Pet Supplies ( See Top 100 in Pet Supplies ) #484 in Aquarium Water Treatments |
| Brand Name | API |
| Customer Reviews | 4.1 4.1 out of 5 stars (297) |
| Date First Available | June 8, 2005 |
| Date First Available | June 8, 2005 |
| Department | Unisex-Adult |
| Department | Unisex-Adult |
| Directions | Use when setting up a new aquarium, adjusting pH in an established aquarium and changing water. Shake well to mix powder. Add 2 teaspoons for every 10 U.S. gallons (38 L) of aquarium water. Repeat dose when pH test indicates a pH change of more than .2. Not for use in aquariums containing live plants. Tips: To keep aquarium fish healthy and colorful, it is necessary to maintain a stable pH in the โฆ |
| Item Dimensions LxWxH | 2.13 x 2.13 x 5 inches |
| Item Package Dimensions L x W x H | 5.28 x 2.01 x 1.97 inches |
| Item Weight | 0.6 Pounds |
| Item model number | 35C |
| Item model number | 35C |
| Language | English |
| Language | English |
| Manufacturer | Mars Fishcare |
| Manufacturer | Mars Fishcare |
| Material | Plastic |
| Model Name | PROPER PH 6.5 PWDR JAR-SMALL |
| Number of Items | 1 |
| Product Dimensions | 2.13 x 2.13 x 5 inches; 9.6 ounces |
| Size | PH 6.5 |
| Style | pH 6.5 |
| Target Audience Keyword | fish |
J**Z
Good buy
It really works. Will buy again
T**N
1tsp dropped a 9.5pH to a 7 0 ๐
I got this in hopes that lowering the pH in my goldfish tank would bring back their color. I have 2 goodies that suddenly lost their color two-ish years ago and are now stark white. I tried food, water changes, temperature, sand, ect. Only thing new was we moved from city water to well water with an extremely high hardness and pH levels the year before. Unfortunately, tgis didn't fix it. It did what it was advertised to do though. In a 40gal tank with a 9.5 pH, 1tsp dropped it to a 7.0
J**K
I use it with my plants all the time.
Interesting the way it says โdo not use with live plantsโ but interestingly, you can use it with live fish..? I have been using this product with ALL of my plants to keep my ph stable at 6.5 with my caridina shrimp. I also keep neocaridinas at this ph. They all thrive very well. I do use RODI water. I add 1-2 tsp with my 7.5 gallon water, which my PPM comes out to 60-80. I grow Subwassertang, flame moss, and among other plants. They do fine.
G**R
Works
It worked for a couple days. My waters just too rough to try to maintain this low of pH.
S**A
Works!
It said not to use if you have plants, so I only use this sparingly. But it definitely works! I was having trouble bringing down the PH with almond leaves and other botanicals.
V**Y
Doesn't work!
I tried using this product 3 separate times and after every time when I test the water, the pH doesn't move from where it was to begin with!
D**3
Aquarium Adjustment Chemical
Works as advertised in aquarium.
R**F
Works with caution
Be very careful when using with exotic plecos and other sensitive fish, it does work, but when you change the ph, you also change other parts of te water, after putting in ..from 6.0 to 6.5 in 5 mins...same evening my green phantom died ...coincidence maybe...wouldn't use again, but does work...just becareful. I gave it 4 stars because it does what it says...but if you have expensive fish , just do a water change ....
C**S
I needed to lower the pH in one of my aquariums to create the ideal environment for my new German Blue Rams, so I decided to give this product a try. It worked wonders! With just a small amount added to the water, the pH dropped from 7.8 to 6.4 almost instantly. This product is absolutely incredible, and I highly recommend it to anyone looking for a quick and effective way to adjust their aquariumโs pH. Itโs a game-changer!
G**0
Using in aquarium fish tanks for ph level
Y**D
Excellent produit, parfait pour stabiliser le PH dans l'aquarium, merci.
S**K
this product works great I can guarantee that it'll take the pH balance to what it says. Does the job yes I would recommend it and I would purchase it again
A**R
Our waters pH from the tap is at the highest range on the test kits. At the time we were new to fish keeping and so we had problems with ammonia and nitrite, the additives we used lowered the pH to the lower range, but did not remain constant so it fluctuated from high to low, which when reading up on pH levels was very bad for the fish. From our research for our fish it seemed that a lower pH would be better for them, and to maintain it. This product has done just that, and remains constant at the 6.5 level between water changes which we do once a month and with that water change as per the instructions we add a little more. We had put off buying it for a long time because when reading up on pH it seemed difficult to maintain and could be more harmful to the fish if the levels did not maintain themselves and many believed it best to leave well alone, but we had suffered far too many fish losses and was desperate to try and get the tank into balance to keep the remaining fish alive and there is no doubt in our minds that using this product was the turning point for us, and we haven't had any more fish losses since using it, in fact the opposite we now have 25 babies born in the tank.
Trustpilot
3 weeks ago
1 month ago