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Bulk Reef Supply

HydroPowder - Un-Hydrated Ultra Pure Water

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April Fools 2026
$9.90 $9.90

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Un-Hydrated Ultra Pure Water

Introducing the world's first fully un-hydrated ultra pure powdered water. Created in our lab using lab-grade science methods, we developed this revolutionary product to revolutionize the reefing hobby.

HydroPowder transforms into zero TDS ultra-pure water when exposed to air, giving you an instant, on-demand water source for your reef tank.

Available in three convenient sizes for your convenience:

  • Small: Less big than the bigger size
  • Bigger: Larger than the small size
  • ATO Tabs: Add 1 tab per 25 gallons of tank water

Developed Using Lab-Grade Science

Super duper smart scientists developing BRS HydroPowder

Using a proprietary reverse-hydration process, our team of scientists scientifically converted dihydrogen into a stabilized particulate form.

Through advanced molecular stabilization, HydroPowder remains completely inert in its dry form, allowing it to be safely stored at room temperature without degradation. By removing active hydration pathways, the hydrogen particles are locked in a stable state until exposed to atmospheric oxygen.

The result is ultra-pure, zero TDS water, just waiting to be reactivated.

Learn More: Behind the Scenes: How We Created HydroPowder

Saltwater Mixing Instructions

BRS HydroPowder mixing instructions

Creating a batch of saltwater has never been easier. In just two steps, you'll have perfect 35ppt saltwater.

Step 1: Add 1 part salt and 2 parts HydroPowder to a reef-safe container

Step 2: Wait a few seconds for the surrounding air to hydrate the mix

Important: At altitudes above 3,000 feet, reduced oxygen density may affect results. For every 100 feet above sea level, place one live houseplant next to your mixing container.

Stop Fumbling Around with RO/DI Filters

Josh FAILING at carrying RO/DI filters

Tired of replacing RO/DI filters every few months?

Sediment filters. Carbon blocks. DI resin. Membranes. It never ends.

HydroPowder eliminates the entire process.

  • No more swapping filters.
  • No more maintenance schedules.
  • No more surprise TDS spikes.

Just scoop, measure, and pour.

Now Available: HydroPowder Top Off Tabs!

BRS HydroPowder Top Off Tabs

Using the same proprietary reverse-hydration process, we’ve compressed HydroPowder into convenient time-release tablets designed for effortless evaporation replacement. As each tab is exposed to atmospheric oxygen, it gradually rehydrates, delivering a steady supply of ultra-pure H₂O throughout the day.

Just add 1 tab per 25 gallons of tank water, per week.

Disclaimer: Evaporation replacement is achieved through controlled atmospheric hydration. Do not use in sealed containers unless additional air is provided.

Happy April Fools Day! Want to WIN a BRS Gift Card?

More Information
SKU April Fools 2026
Aquarium Type Saltwater
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