Reef Essential® Signature Series™ / Iodine
Signature Series™ · Single-Element Precision
Iodine — for when your ICP test says you're low.
Ultra-pure, ICP-OES tested iodine with nothing else riding along — for correcting a specific deficiency your water test just flagged, not for routine blanket dosing.
Why iodine, specifically
What this element is actually doing in your tank, in plain terms.
A natural sunblock
Iodine helps provide a natural sunblock effect against excess UV light and naturally moderates the density of zooxanthellae living in coral tissue — both directly tied to coral color and stress resistance.
Exoskeleton development
Iodine is used in biochemical processes that support exoskeleton development in invertebrates such as crustaceans — shrimp, crabs, and other molting inverts rely on it during each molt cycle.
Inverts & heavy bioload
Tanks with a meaningful cleanup crew or ornamental shrimp population burn through iodine faster than coral-only systems — worth checking first if your ICP test came back low.
When to reach for Iodine specifically
Single-element dosing is precision correction, not a routine — here's how to tell if this is the bottle you need.
Your ICP test flags low iodine specifically
Signature Series products exist to correct one number at a time — dose based on your actual test result, not a guess.
Bio-Gen™ or Easy Reefer® Easy Z™
If you're not testing individual elements yet, Bio-Gen™ (Step 4) or Easy Z™ already carry iodine as part of a broader halogen blend — simpler for routine maintenance.
Dosing
Dose according to your ICP test result, not on a fixed schedule.
| What you're doing | Effect |
|---|---|
| Per 100L (26 US gal) dosed | 0.1 mL raises Iodine by 0.01 ppm |
| Recommended pacing | Spread the correction over at least 1 week |
| Target concentration | 0.03 – 0.09 ppm |
Rest of the Signature Series™
Organized by periodic table group — dose only the elements your ICP test says you're missing.
Questions about this product
Do I need to test before dosing this?+
How is this different from the iodine in Bio-Gen™?+
Can I use this after any ICP test, or only Quantum's?+
What's actually in the bottle?+
Got an ICP result to correct?
The dosing app turns your test numbers into an exact daily dose.
Order direct from Quantum