New Arrivals/Restock

Brightwell Aquatics Iodion Iodide Supplement for Corals Clams Fish Macroalgae Enhances Polyp Extension Lighting Tolerance in Reef Marine Aquariums, 2L

flash sale iconLimited Time Sale
Until the end
07
13
46

$24.09 cheaper than the new price!!

Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.
New  $40.15
quantity

Product details

Management number 209690307 Release Date 2026/03/29 List Price $16.06 Model Number 209690307
Category

Iodion by Brightwell Aquatics is a premium-grade iodide solution designed to support the health and vitality of corals, clams, macroalgae, and fish in marine and reef aquariums. Iodide plays a critical role in how reef invertebrates manage oxidative stress caused by intense lighting and symbiotic algae activity. In corals and clams, it binds excess oxygen, preventing irritation and allowing these organisms to remain open and active under high light conditions. Even though iodine is present in natural seawater at trace levels (around 0.06 ppm), it is essential for various reef organisms. Unfortunately, it is rapidly removed from aquarium systems through filtration and natural processes. Protein skimmers and filtration media like carbon and resins strip iodine from the water, making regular supplementation necessary. Iodion delivers a concentrated and bioavailable iodide source that helps restore and maintain balanced iodine levels. By doing so, it helps corals and other invertebrates stay healthy, extend their polyps, and resist the stress of high-output lighting. Formulated using ultra-pure ingredients and purified water, Iodion is a top-tier choice for reef aquarists who want precise, consistent results. Like all Brightwell Aquatics products, Iodion is developed using real-world data and tested marine science, not just theoretical assumptions. It’s suitable for all skill levels, from beginner hobbyists to seasoned reefkeepers, and can be dosed confidently once the aquarium’s uptake rate is established.

  • SUPPORTS CORAL HEALTH & COLOR Provides iodide to support reef-building invertebrates, clams, macroalgae, and fish in marine aquariums
  • PROMOTES OPEN POLYP EXTENSION Helps reduce oxygen irritation caused by intense lighting, enabling corals to remain fully open
  • ULTRA-CONCENTRATED & LONG-LASTING Formulated for extended iodide availability using high-purity ingredients and precise marine chemistry
  • IDEAL FOR ALL AQUARISTS Reliable and easy to use for beginner and advanced reef hobbyists; formulated by marine scientists
  • AMERICAN-MADE EXCELLENCE – Brightwell Aquatics is an industry-leading brand committed to providing innovative and scientifically backed aquatic care products. Made in the USA, we consistently deliver advanced superior quality solutions to elevate the vibrancy and health of your aquarium.
UPC 810086010264
Item Form Liquid
Brand Name Brightwell Aquatics
Unit Count 1 Count
Item Weight 4.54 Pounds
Manufacturer TopDawg Pet Supply
Model Number IOD2L
Liquid Volume 67.6 Fluid Ounces
Item Type Name Water Conditioner
Target Species Fish
Included Components Iodion
Allergen Information Sulphites Free
Manufacturer Part Number IOD2L

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Product Review

You must be logged in to post a review