Description
Red Sea Marine Care Multi Test Kit — pH, alkalinity, ammonia, nitrite and nitrate tests for cycling and fish tanks
A new marine tank lives or dies on five numbers in its first three weeks, and this is the box that reads all of them. Red Sea Marine Care Multi Test Kit (SKU: RED313) is Red Sea’s complete multi-test pack with every test needed to monitor the biological maturation of a new system, pH, alkalinity, ammonia, nitrite and nitrate, and for the ongoing maintenance and nutrient management of fish-only aquariums. It is the test kit Red Sea’s Reef Mature Starter Kit (RED314) assumes you have, since the 21-day program asks for ammonia, nitrite and nitrate readings on set days and alkalinity held at 8.4 dKH throughout.
Red Sea specifies each test: ammonia colorimetric from 0 to 2 ppm at 0.2 ppm accuracy with 100 tests; nitrite colorimetric from 0 to 1 ppm at 0.05 ppm with 50 tests; nitrate colorimetric from 0 to 250 ppm at 2 ppm with 50 tests; pH colorimetric from 7.6 to 8.6 at 0.2 with 100 tests; and alkalinity by titration at 1 dKH, 0.36 meq/L, with 55 tests. The case holds eight reagents, three glass vials, a 5 mL syringe, a spoon, five colour cards and three manuals. The 250 ppm nitrate range marks it as a cycling and fish-tank kit; reefs step up to the Pro kits once mature.
Usage & Application
When to Use
- Cycling a new marine tank: The ammonia, nitrite, nitrate, pH and KH readings the Reef Mature program calls for.
- Fish-only aquariums: Ongoing checks that nitrate stays under 10 ppm and alkalinity near 8.4 dKH.
- Quarantine systems: Watching ammonia and nitrite in a lightly filtered hospital tank.
- Troubleshooting: A first screen when fish look stressed or the water clouds.
How to Use
- Ammonia, nitrite, nitrate, pH: Sample with the syringe, add the reagents as directed and match against the colour card.
- Alkalinity: Titrate drop by drop until the colour changes and count the result in dKH.
- Follow the schedule: During Reef Mature, test on the days the manual lists and log every result.
- Act on readings: Delay stocking while ammonia or nitrite show, and buffer with KH Coralline Gro when alkalinity drops.
Product Specifications & Highlights
Key Features
- Five tests in one case: pH, KH, ammonia, nitrite, nitrate.
- Cycling companion: The kit the Reef Mature program is written around.
- Up to 100 tests per parameter: 100 ammonia and pH, 55 alkalinity, 50 nitrite and nitrate.
- Wide nitrate range: 0 to 250 ppm for new and fish-only systems.
- Complete kit: Eight reagents, glass vials, syringe, spoon, colour cards, manuals.
Product Details
- Brand: Red Sea
- SKU: RED313
- Barcode (GTIN/EAN): 7290100774137
- Product Type: Testing > Marine Test Kits
- Parameters: Ammonia, nitrite, nitrate, pH, alkalinity
- Ammonia: Colorimetric, 0–2 ppm, 0.2 ppm, 100 tests
- Nitrite: Colorimetric, 0–1 ppm, 0.05 ppm, 50 tests
- Nitrate: Colorimetric, 0–250 ppm, 2 ppm, 50 tests
- pH: Colorimetric, 7.6–8.6, 0.2, 100 tests
- Alkalinity: Titration, 1 dKH (0.36 meq/L), 55 tests
- Kit Contents: 8 reagents, 3 glass vials, 5 mL syringe, spoon, 5 colour cards, 3 manuals, plastic case
- Pairs With: Reef Mature Starter Kit (RED314)
- Target Environment: New marine aquariums and fish-only systems





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