Seachem MultiTest Iodine & Iodide Aquarium Test Kit, 75+ Tests for Low Levels

Seachem MultiTest Iodine & Iodide is an aquarium water test kit for measuring iodine or iodide from 0–0.1 mg/L, with precision of 0.0025–0.005 mg/L.

• Measures iodine or iodide to less than 0.005 mg/L — assess low concentrations in aquarium water.
• Provides over 75 tests — monitor water with repeated measurements from one kit.
• Includes a reference sample — validate the kit’s performance using a test in place of an aquarium sample.
• Uses a multi-cavity test plate — run multiple tests at the same time.
• Includes a color chart with a 5 cm viewing window — isolate the sample color for comparison.

For aquarium keepers monitoring iodine or iodide, this kit provides a defined measurement range and a way to compare a test sample against a color chart. It is intended for marine, saltwater, and freshwater aquariums, and offers quantitative results for soft and hard coral growth. The reference sample gives you an additional way to check that the kit is performing as intended.

What does the Seachem MultiTest Iodine & Iodide kit measure?

It measures iodine or iodide across a range of 0–0.1 mg/L. Its precision is 0.0025–0.005 mg/L, and it measures to less than 0.005 mg/L. These values make the kit suited to testing for low iodine or iodide concentrations in aquarium water. Results are quantitative and are relevant to monitoring conditions for soft and hard coral growth.

• Analytes: iodine or iodide
• Measurement range: 0–0.1 mg/L
• Precision: 0.0025–0.005 mg/L

Which aquariums can I use it with?

Seachem MultiTest Iodine & Iodide is made for marine, saltwater, and freshwater aquariums. Use it when you want to measure iodine or iodide in aquarium water, including when monitoring water for soft or hard corals. The kit’s results are quantitative, giving you a measurement to compare over time.

• For marine and saltwater aquariums
• For freshwater aquariums
• Provides results related to soft and hard coral growth

How many tests are included, and can I test more than one sample at once?

The kit performs over 75 tests, and its multi-cavity test plate allows multiple tests to be run at the same time. This format is useful when you want to test more than one sample in a session. A reference sample is included for a performance check: run the test as usual, substituting the reference sample for the aquarium sample.

• Over 75 tests per kit
• Multi-cavity plate for simultaneous tests
• Reference sample for validating performance

How do I compare the test color?

Compare the test sample with the included easy-to-read color chart. Its 5 cm viewing window helps isolate the color so you can match it as closely as possible to the chart. The chart supports visual comparison of the test result; the kit’s measurement range and precision define the values it is designed to assess.

• Color chart included
• 5 cm viewing window
• Designed to help isolate sample color for matching

Seachem MultiTest Iodine & Iodide suits aquarium keepers who need quantitative iodine or iodide readings across marine, saltwater, or freshwater setups, including aquariums with soft or hard corals. It combines over 75 tests, a reference sample, and a color-chart viewing window for structured water testing.