Seachem MultiTest pH and Alkalinity 75 Tests

Seachem MultiTest pH & Alkalinity 75 Tests

• nique dye that has a pronounced color change between 8.0 and 8.3.
• Multi-cavity plate for simultaneous testing of up to 6 tests at the same time.
• Includes reference for test validation.
• Marine or high pH Freshwater.

Marine pH should be 8.2 to 8.4. Tanks dosed with limewater may go as high as 8.6. Natural sea water has a total alkalinity of 2 to 3 meq/L, but aquarium water should have a total alkalinity of 4 to 6 meq/L.

This test kit features a unique dye that has a pronounced color change between 8.0 and 8.3, making it the easiest kit on the market to read in that critical range. It is suitable for marine or brackish water only. Alkalinity may be read from the same sample in 0.5 meq/L increments. MultiTest Marine pH & Alkalinity performs over 75 tests and contains a reference sample for validation.

This kit measures total alkalinity. Total alkalinity is a measure of the carbonate, bicarbonate, borate and hydroxide content of the water, expressed as the acid neutralizing capacity of the water in meq/L (milliequivalents/Liter). The expression of alkalinity as meq/L is chemically sound and the most useful way to express this property of the water to resist change in pH.

Compatibility

What it is. Seachem’s own description: the MultiTest Marine pH & Alkalinity kit, which performs over 75 tests and reads both pH and alkalinity from the same multi-cavity test plate. It is suitable for marine or brackish water only, and measures total alkalinity.

Where this sits in the Seachem range. One of Seachem’s individual MultiTest kits: it shares the opaque white multi-cavity test plate and sliding color-chart format with the rest of the MultiTest line, but is its own dedicated marine pH/alkalinity kit rather than part of Reef Special.

What makes it easy to read. Seachem notes the dye has a pronounced color change between pH 8.0 and 8.3, which the company calls the easiest kit on the market to read in that critical range.

Specifications

Test count. Over 75 tests per kit.

Measurement range. pH 7.80 to 8.70, with the color chart resolving changes in 0.01 pH units; alkalinity from 0 upward, readable in 0.5 meq/L increments from the same sample.

What’s in the Box

Marine pH and alkalinity reagents, reference samples for validation, a pipette, a stir rod, the sliding color chart with its 5 cm viewing window, the multi-cavity test plate, and instructions.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months’ remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number, or email us if you would rather, and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 48 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.