Reef Essential® Signature Series™ / Fluorine
Signature Series™ · Single-Element Precision
Fluorine — for when your ICP test says you're low.
Ultra-pure, ICP-OES tested fluorine on its own — for correcting a specific deficiency your water test just flagged, not for routine blanket dosing.
Why fluorine, specifically
What this element is actually doing in your tank, in plain terms.
Skeleton strength, twice over
Fluorine is present in coral skeleton, helping to improve calcification and produce strong aragonite instead of brittle calcite.
Algae & parasite resistance
Beyond skeleton building, fluorine naturally helps reduce algae growth and improves coral resistance to parasites — a defensive role most trace elements don't play.
Stony corals under pressure
Skeleton-heavy stony corals benefit most directly, and systems fighting nuisance algae or parasite pressure have extra reason to keep fluorine in range.
When to reach for Fluorine 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 fluorine specifically
Signature Series products exist to correct one number at a time — dose based on your actual test result, not a guess.
A blended maintenance product instead
Bio-Gen™ or Easy Reefer® Easy Z™ already carry fluorine 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 | 0.4 mL raises Fluorine by 0.02 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 fluorine in Easy Z™?+
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