reef-essential®-signature-series™-rubidium

reef-essential®-signature-series™-rubidium
$33.99
{price}% OFF
$33.99
Reef Essential® Signature Series™ / Rubidium Signature Series™ · Single-Element Precision Rubidium — for when your ICP test says you're low. Ultra-pure, ICP-OES tested rubidium on its own — for closing a gap your water test just flagged, not for routine blanket dosing. ICP-OES tested every batch Alkali Metal Target...

Reef Essential® Signature Series™ / Rubidium

Signature Series™ · Single-Element Precision

Rubidium — for when your ICP test says you're low.

Ultra-pure, ICP-OES tested rubidium on its own — for closing a gap your water test just flagged, not for routine blanket dosing.

ICP-OES tested every batch Alkali Metal Target 0.03–0.05 ppm
Calculate your dose in the app
Periodic group
Alkali Metal
Target range
0.03–0.05 ppm
Dose effect
1 mL/100L = +0.01 ppm
Suitable for
FOWLR, LPS, Mixed, NPS, SPS

Why rubidium, specifically

What this element is actually doing in your tank, in plain terms.

WHY IT MATTERS

Closing the gap to real seawater

Rubidium is an essential element found in natural seawater. To replicate natural seawater parameters as closely as possible, supplementation is highly recommended once your ICP test shows it running low.

THE PROCESS

A completeness element

Like lithium, rubidium doesn't have one dramatic biochemical headline — its value is keeping your water chemistry closer to the full trace-element profile of natural seawater over the long run.

WHO NEEDS MORE

RODI-heavy, low-natural-load systems

Systems running fully synthetic salt with aggressive skimming or heavy water changes are more likely to show a rubidium gap than tanks with natural seawater or live sand top-ups.

When to reach for Rubidium specifically

Single-element dosing is precision correction, not a routine — here's how to tell if this is the bottle you need.

USE THIS WHEN
Your ICP test flags low rubidium specifically

Signature Series products exist to correct one number at a time — dose based on your actual test result, not a guess.

CONSIDER INSTEAD
A blended maintenance product instead

There's no blended product carrying rubidium in the standard lineup — this is the direct route once your ICP test flags it.

Dosing

Dose according to your ICP test result, not on a fixed schedule.

What you're doing Effect
Per 100L (26 US gal) dosed 1 mL raises Rubidium 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.

ALKALI METAL
Lithium

Natural seawater completeness.

ALKALINE EARTH
Strontium

Aragonite density in SPS.

HALOGEN
Iodine

UV protection & molting.

METALLOID
Boron

Skeleton calcification.

Questions about this product

Do I need to test before dosing this?+
Yes — Signature Series products are built to correct a specific deficiency your ICP test identifies. Dosing without a baseline test risks overshooting the target range.
Is there a blended product with rubidium in it, like the other elements?+
No — rubidium isn't currently part of Bio-Gen™, Bio-Metals™, Aragonite Enhancers™, or Easy Reefer®. This single-element product is the direct way to correct it once an ICP test shows it running low.
Can I use this after any ICP test, or only Quantum's?+
This product can be used after any ICP test you've purchased — it's not tied to a specific testing service. The Quantum Aqua app helps calculate your dose from the result.
What's actually in the bottle?+
Ultra-pure rubidium and nothing else — formulated under controlled lab conditions with every batch ICP-OES tested for accuracy.

Got an ICP result to correct?

The dosing app turns your test numbers into an exact daily dose.

Open the dosing app