Multitest Marine - pH/Alkalinity

Keep your reef stable with the Seachem MultiTest Marine pH/Alkalinity Test Kit. Designed for marine and brackish aquariums, this easy-to-read test kit measures both pH and total alkalinity from the same sample, helping you maintain the ideal water conditions for fish, corals, and other invertebrates.

The standout feature is its unique dye system, which gives a clear colour change right in the critical marine pH range of 8.0–8.3. That makes it much easier to spot small shifts before they become a bigger problem. The kit also measures total alkalinity in 0.5 meq/L increments, giving you a reliable picture of your aquarium’s buffering capacity and resistance to pH swings.

With over 75 tests included plus a reference sample for validation, this is a practical and dependable choice for any marine hobbyist serious about water quality.

Key Features:

• Tests both marine pH and total alkalinity
• Easy-to-read colour change in the critical 8.0–8.3 pH range
• Measures alkalinity in 0.5 meq/L increments
• Suitable for marine and brackish aquariums only
• Includes reference sample for added accuracy
• Performs over 75 tests