Product Information
Delivery Info
Red Sea's pH/Alkalinity includes an accurate titration test for alkalinity(KH) and a colormetric test for pH, for monitoring these parameter in marine aquariums.
pH test has an accuracy of 0.2, range 7.6-8.6 and can perform 100 tests
Alkalinity test has an accuracy of +/- 1dKH and can perform approx 55 test, dependent on water conditions.
Red Sea pH Test directions for use
1. Using the syringe provided, place exactly 5 ml of the water to be tested into the glass vial.
2. Add 3 drops of pH indicator close the vial with the cap and shake for 10 seconds.
3. Remove the cap and move the vial between the designated positions on the color card,
look into the vial from above and compare the color in the vial to the colors on the card.
Choose the pH level that gives the closest color match and if necessary estimate an
intermediate value.
4. The color in the reaction vial will remain stable for 5 minutes. Do not relate to the color in
the reaction vial after this time.
Red Sea KH Test directions for use
1. Using the syringe provided, place exactly 5 ml of the water to be tested into the glass vial.
2. Add 1 drop of KH indicator and shake for 10 seconds. The test sample will obtain the
titration start color as shown on the instruction card.
3. Continue to add KH indicator one drop at a time (shake for 10 seconds after each drop)
until the color of the sample in the glass vile changes to the corresponding “end” color as
shown on the instruction card. Count the number of drops required to reach the end color.
4. Each drop of indicator corresponds to 1°KH or 0.36 meq/L.
5. If the last drop gave the overdose color instead of the end color reduce the calculated level by 0.5°KH or 0.18 meq/L.
Note: The Alkalinity test kit enables accurate dosing of Red Sea’s KH-Coralline Gro and Reef Foundation B Buffer Supplements in fish only systems.
We aim to dispatch all orders the same working day provided it is received before midday and payment confirmed, subject to stock availability. Orders received after this time may not be dispatched until the next working day. In the unlikely event of an item being out of stock, we will contact you via email to advise you of an estimated delivery date, to give you the option of cancelling or waiting.
Small and lightweight items (below 4kg) will normally be sent via Royal Mail 1st class, and will be delivered within 5 days, usually quicker.
Larger orders with a total weight over 4kg will normally be sent via parcel carrier for delivery the next working day.
Any orders placed over a weekend will be dispatched on Monday. If the order is placed over a bank holiday it cannot be dispatched until the first working day.
We reserve the right to use the most cost effective service to get your order to you as quickly as possible.
For more details, see delivery and returns in the side menu.