Use to measure pH changes in marine aquariums, aquariums with African cichlids, and very alkaline tap water. Reads the pH of water within the high range of 7.4 to 8.8. 250 tests per kit.
Freshwater/Saltwater High Range pH Test Instructions:
Why Test pH?
pH is the measure of acidity of water. A pH reading of 7.0 is neutral. A pH higher than 7.0 is alkaline, and a pH lower than 7.0 is acidic. Certain freshwater fish thrive at a pH above 7.0. Live-bearers and goldfish require a pH of 7.5. African cichlids, marine fish and invertebrates require a pH between 8.2 and 8.4. Maintaining the aquarium at the proper pH ensures optimal water quality.
This test kit measures pH from 7.2 to 8.8 in either fresh or saltwater aquariums. This kit contains two High Range pH Test Color Charts — one for freshwater aquariums, and one for saltwater aquariums — so be sure to use the correct chart for your type of aquarium when interpreting test results. The Freshwater pH Test Color Chart is the appropriate chart to use for testing freshwater aquariums to which aquarium salt and African cichlid salt have been added. Artificial salt water should have a pH of 8.2. If not, adjustment with Aquarium Pharmaceuticals PROPER pH™ 8.2 is recommended. pH adjustment may be required in newly made salt water.
Directions for Testing pH:
Recommended pH Levels:
- Read thoroughly before testing. Do not allow Test Solutions to get into aquarium.
- To remove childproof safety cap: With one hand, push red tab left with thumb while unscrewing cap with free hand.
- Fill a clean test tube with 5 ml of water to be tested (to the line on the tube).
- Add five drops of Indicator Solution, holding dropper bottle upside down in a completely vertical position to assure uniformity of drops.
- Cap the test tube and invert tube several times to mix solution. Do not hold finger over open end of tube, as this may affect the test results.
- Determine the pH reading by matching the color of the solution against those on the High Range pH Color Chart. The tube should be viewed against the white area beside the color chart. Color comparisons are best made in a well-lit area. The closest match indicates the pH of the water sample. Rinse the test tube with clean water after each use.
A pH level of 8.2 is ideal for saltwater fish, invertebrates and African cichlids. To automatically set the pH at 8.2. use Aquarium Pharmaceuticals PROPER pH 8.2 for saltwater aquariums. Proper pH 8.2 is a carbonate buffer which automatically adjusts and holds the pH at 8.2.
A pH of 7.5 is ideal for most live-bearing fish, such as mollies and swordtails. Goldfish will also thrive at a pH of 7.5. To raise or lower the pH of a freshwater aquarium, use Aquarium Pharmaceuticals pH UP™ or pH Down™, following the directions on the container. Proper pH 7.5 may be used to automatically adjust and hold pH at 7.5. Proper pH 8.2 may be used in African cichlid aquariums.
Frequency of Testing:
The pH should be tested weekly, since natural materials in the aquarium (such as fish waste and decaying food) can cause pH changes. The minimum pH reading for this kit is 7.2 and the maximum is 8.8. Under extreme water conditions, readings below the minimum will read 7.2 and above the maximum will read 8.8. pH adjustments outside the range of this kit will not show any changes until the pH of the aquarium water is within the range of this kit.
- Keep out of reach of children.
- Eye contact: gently flush with water for at least 15 minutes. Remove contact lens, if present, after the first 5 minutes, then continue rinsing.
- Skin contact: wash thoroughly with soap and water.
- If swallowed, contact a physician or Poison Control Center immediately.
Aquarium Pharmaceuticals Aquarium Supplies
Aquarium Pharmaceuticals (API) has been helping people take good care of ornamental fish for over 40 years. Their research and development scientists have advanced the care of fish with all-natural medications, stable bacteria for biological filtration, one-bottle test kits, consumer-friendly dosing caps and much more. They’ve received over 25 global patents for their breakthrough innovations in the aquatics industry. And they continue to look for ways to improve the fishkeeping experience for hobbyists. Research. Experience. Dedication to scientific, quality treatment for healthy fish. It’s what makes API the first choice of aquarium owners. API manufactures and sells hundreds of products across many different product categories, including aquarium and pond treatments, aquarium equipment, aquariums and fish nutrition.
Most orders under $39 ship for only $5.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out.
We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in up to 7 business days. Just spend $39 or more!
Over 90% of shoppers receive their orders within 1-2 business days. Upgrade from free economy shipping to faster shipping for only $5.99—or spend $250 and we'll upgrade you automatically!
Expedited shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.
Same-day shipping is available Monday-Friday for most products—place your order by 10:30 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
We ship live plants, live foods, and frozen foods within the contiguous United States. Each of these categories is subject to its own $19.99 flat-rate shipping fee to cover the special packaging and/or expedited shipping costs required to ensure safe delivery. Orders with 12+ live plants ship free!
Learn More About Shipping
Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.
A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.
We are unable to accept returns of Digital Aquatics, Neptune Systems, Vertex Aquaristik, Aqua Illumination (AI), EcoTech Marine, GHL, or Seneye products once the manufacturer's packaging seals have been broken.
Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.
Learn More About Returns
Rack up reward points to earn discounts on future purchases! You can earn reward points by creating an account, writing reviews, referring friends, subscribing to our newsletter, buying products, and more!
- Earn 5 reward points for every $1 you spend to get 5% cash back
- Earn 1 reward point for every $1 you spend to get 1% cash back
Abyzz, American Marine, AquaIllumination, AutoAqua, CoralVue, Digital Aquatics, EcoTech Marine, Giesemann, GHL, Hanna Instruments, Hydor, IceCap, Innovative Marine, Iwaki, Kamoer, Kessil, Klir, Korallen-Zucht, Maxspect, Mur-lok, Nano Box, Neptune Systems, NYOS, Oceanbox Designs, Pax Bellum, Radium, Red Sea, Reef Glass, Reef Octopus, Seneye, Somatic, Tunze, Vertex Aquaristik, and Waterbox Aquariums
You can also get bonus reward points by purchasing select items during special sales and promotions.
Learn More About Rewards