Seachem MultiTest Iodine and Iodide Test Kit
$23.28
Price: $23.28
(as of Oct 25, 2025 11:05:59 UTC – Details)
This kit measures iodine or iodide to less than 0.005 mg/L. MultiTest™ Iodine/Iodide performs over 75 tests and contains a reference sample for validation. Range: 0–0.1 mg/L. Precision: 0.0025–0.005 mg/L.
Is Discontinued By Manufacturer : No
Product Dimensions : 4.6 x 4.6 x 2.5 inches; 3.2 ounces
Item model number : 978
Date First Available : October 2, 2001
Manufacturer : Seachem Laboratories, Inc.
ASIN : B000255RQ0
Best Sellers Rank: #76,051 in Pet Supplies (See Top 100 in Pet Supplies) #105 in Aquarium Test Kits
Customer Reviews: 3.6 3.6 out of 5 stars 119 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Seachem MultiTest: Iodine & Iodide Test Kit- 75 Tests for Marine, Saltwater or Freshwater Aquariums
ACCURATE: The MultiTest Iodine & Iodide test kit measures a range between 0-0.1 mg/L iodine or iodide. It is extremely precise as it detects changes on the color chart in 0.0025-0.005 mg/L increments
75 TESTS: MultiTest Iodine & Iodide test kit performs over 75 tests. With the multi-cavity test plate, multiple tests can be run at the same time. The innovative Iodine/Iodide test kit offers quantitative results for soft and hard coral growth
PERFORMANCE: The kits proper performance can be validated by running a test in the normal manner except that the reference sample is used in place of aquarium sample
COLOR CHART: All MultiTest test kits come with an easy-to-read color chart. It features a 5 cm viewing window to help isolate color and match as closely as possible to the test sample
Customers say
Customers report mixed experiences with the test kit’s accuracy, with some saying it works well while others find it unusable. The product receives mixed feedback about its quality and value for money. Moreover, customers find the instructions unclear and the test difficult to read, with one customer noting inconsistent color intensity. Additionally, the test is not the easiest to perform.

BRUCE COX –
Good test kit
Easy multi step test. Takes about 10 minutes to do. Can test accuracy on test water sample they send with kit. Don’t dose anything you can’t measure. Used distilled water to make required solution. RO water may not work.
Amazon Customer –
Very misleading and doesn’t work the majority of the time
This test is extremely frustrating. I make the reagent 2 follow the directions entirely and expect to be able to use it for the 3 to 4 hours per the directions. I’ll test my sample and it seems to be “working”. I then add my iodine supplement and let it circulate for 30 minutes. When I go to test another sample it does not react. I ensure to shake reagent 2 but the 2 drops do not cause the test to turn blue at all. I dont understand how this doesnt work the 2nd time around when the directions clearly state good for 3 to 4 hours. Am I expect to make a batch every test and wait the 5 minutes? Look for a new test.
Amazon Customer –
Skeptical at first…
Not the easiest test to perform. but if you can read, you should have no problem getting “dead on balls accurate” results. definitely worth the savings compared to a salifert test kit, there are just a few extra steps involved.
Daniel S. –
Great Product!!!
Works Great!!! Highly recommended to all other hobbyist and aquarists.
tammy –
Difficult to get an accurate reading
First test kit received I could not get the reference solution to read anything at all. Emailed the manufacturer and received a new kit. Second kit would register the reference solution ok. But the color peaks a lot quicker than the instructions indicate so not really sure what the actual reading is. But gets you in the ballpark.
Miguel A. Garcia Oltra –
Excellent Product.
Good
Dustin Weiss –
Junk!!
Unclear instructions very complicated to use searched the internet for hours looking for a how to do video. There is none better be a chemist major to figure out this test. Gave up and throw away in the trash save your money look else where for better testing solutions. These water testing company’s really need to make how to do videos, not everyone starts out as a pro coral reef specialist. Instructions are worthless!!
Jack –
Kit expired
The kit I received from Amazon did not work, even the reference did not present any color during testing. Perhaps the reagents expired. I emailed Seachem support and they sent me a new one that worked as described. The color intensity seems inconsistent and there is only a short window of time to do the reading. I test with the reference sample every time which limits the amount of tests I can do if I want any amount of resolution beyond present vs not present. The test is fairly straightforward, but *requires* RODI or distilled water. It takes 5 min to wait for the prepared reagent to âactivateâ, but otherwise the testing is very quick. Mix the powder reagent with your water and then mix in the prepared liquid reagent, read the color change.
tralalla –
Der Test ist komplett nutzlos.Foto links mit Beckenwasser, keine ReaktionFoto mitte mit der beigelegten Referenz, keine ReaktionFoto rechts mit Fauna Marin Elementals I, keine ReaktionDazu kommt noch, daà nirgends angegeben ist, welchen Wert die Referenzlösung haben soll. Das Testkit geht zurück an den Absender.
cliff –
Need to read instructions as felt like a chemist with all different stages but does what it says will buy same again
Stefano F. –
inutile ho provato 4 volte e seguendo alla lettera le istruzioni. testato con iodio puro e non ha dato nessuna reazione. soldi buttati.
Bob –
Good Price works well.
José Luis –
Llevo muchos años haciendo test para mi acuario marino, soy meticuloso en los pasos , pero no funciona , no sólo no mide connorecusión , directamente no reacciona ni siquiera con el aditivo dd iodo para el acuario