Seachem Reef Iodide Supplement for Reef Aquariums
Seachem Reef Iodide is a concentrated (8,000 mg/L) stabilized potassium iodide source for reef aquaria that will restore and maintain iodide levels to those found in natural sea water.
It is formulated to provide a safe source of iodide that will not convert to toxic free iodine under storage or reef conditions.
Iodine is as toxic as chlorine and should never be used in a reef system. However, iodide is as safe as chloride.
Iodide is an important element required by invertebrates and many soft corals (gorgonians, sarcophytons, etc).
| Specification | Value |
|---|---|
| Active Ingredient | Stabilized Potassium Iodide |
| Concentration | 8,000 mg/L |
| Form | Clear Liquid |
| Volume | 50 mL |
FAQ
How often should I add Seachem Reef Iodide to my reef tank?
Add according to your tank’s needs and test results. Typically, a small dose every 1-2 weeks is sufficient for most reef systems. Always monitor iodide levels with a reliable test kit.
Is Seachem Reef Iodide safe for corals and invertebrates?
Yes, Seachem Reef Iodide is safe for invertebrates and many soft corals. It is formulated to remain stable and not convert to toxic free iodine under normal reef conditions.
Can I use this product with other supplements?
Yes, it can be used alongside other Seachem products. However, always monitor iodide levels to avoid over-supplementation.




Benjamin Hamilton –
I’ve been using this supplement for three months now and my soft corals have shown better coloration and growth. The product is easy to mix and the instructions are clear. No issues with my tank’s inhabitants so far.
Michelle Lyman –
It works well for maintaining iodide levels. I test my water every two weeks and it stays stable. My gorgonians have grown more vibrant since I started using it.
William Hill –
Great product. I was worried about iodine toxicity, but this is safe and effective. My tank has been stable with no signs of stress in the invertebrates.