API Proper pH 6.5 Aquarium Water Treatment, 8.5-oz bottle
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Help automatically set and stabilize pH levels with API's Proper pH 6.5 Aquarium Water Treatment. Different fish need different pH levels to stay healthy. Levels that are too high, or too low, can cause stress, illness and can even lead to fish loss. API's Proper pH 6.5 Aquarium Water Treatment is designed to modify and maintain pH for several weeks while neutralizing harmful chlorine and toxic heavy metals. It also contains soothing aloe vera and electrolytes to help heal damaged tissue and help prevent electrolyte imbalance. This solution is easy to use and fast dissolving, making it ideal to use during aquarium setup or water changes.
Key Benefits- Formulated to help set and stabilize pH at 6.5 for fish who thrive off of this level like Tetras, Dicus and Angelfish.
- Specifically designed to help modify and maintain pH levels in freshwater aquariums.
- Helps to remove chlorine and detoxify heavy metals, for a more habitable environment for your finned friends.
- Contains aloe vera to help heal and regenerate damaged tissue, plus electrolytes to help prevent electrolyte imbalance.
- Ideal for use during set up and water changes.
Avoid all personal contact, including inhalation. Wear protective clothing when risk of exposure occurs. Use in well-ventilated area. Prevent concentration in hollows and sumps. DO NOT enter confined spaces until atmosphere has been checked. DO NOT allow material to contact humans, exposed food or food utensils. Avoid contact with incompatible materials. When handling, DO NOT eat, drink or smoke.
Not for use in aquarium containing live plants.
This solution should not be used in aquariums containing live plants.
Test your aquarium's pH level with API's pH Test Kit, pH Test and Adjuster Kit or pH Test Strips.
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Item Number94434
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Aquarium TypeFreshwater
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Fish TypeDiscus, Cichlid, Tropical Freshwater
- Store in original container.
- Keep containers securely sealed.
- Store in a cool, dry, well-ventilated area.
- Store away from incompatible materials and foodstuff containers.
- Protect containers against physical damage and check regularly for leaks.
- Observe manufacturer's storage and handling recommendations.
What is the dosage per gallon for API PROPER PH 6.5?
Add 2 teaspoons for every 10 gallons of aquarium water. Repeat dose when pH test indicates a pH change greater than 0.2.
Customer Reviews

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2 Reviews
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Great for PH !!
By Connie on Sep 7, 2018
I have tried several products to lower my PH, and of the ones I’ve tried this is the only product that lowers it with the first dose, all others I had to dose 2 or 3 times before getting the PH I needed for my angelfish!! Great product !!
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easy and works good
By Deee on Oct 21, 2016
easy to use with good labeled directions and handy measuring scoop.