Canada’s Best-Selling Reef & Aquarium Gear – Trusted by Professionals

Made in the USA - Canada’s Best-Selling Color Changing DI Resin.  Fills One 10" DI CartridgeShips in mylar bag Experience unmatched confidence wit...

REFILL KIT FOR HI772   Get accurate results for your saltwater aquarium with our simple handheld colorimeter.   Our alkalinity c...

SOLD BY THE POUND pH balanced Comes in pelleted format Minimal phosphate levels Huge surface area It is not acid-washed, so it does not l...

Specially formulated for the use with reverse osmosis water Red Sea is please to announce the addition of an innovative new salt formula designed t...

DOW FILMTEC™ Next Generation Home RO Elements Dow's next generation elements have been precisely designed and will replace existing DOW FIL...

Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals® contains essential ocean reef elements ...

Marco Rock - Premium Dry Key Largo (20 lbs Each box is hand packed by a reef tank enthusiast to ensure you will get what you need and want for your...

Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquari...

B-Ionic Calcium 2-part Buffer is the original, unique, easy to use, two-component liquid supplement system. When using equal volumes of each compon...

REEF ENERGY PLUS  All-In-One Coral Superfood An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resi...

HI782-25 Marine Nitrate High Range Reagents are for use with the HI782 Marine Nitrate High Range Checker HC. They are manufactured in our state...

Specially formulated for the use with reverse osmosis water Red Sea is please to announce the addition of an innovative new salt formula designed t...

DOW FILMTEC™ Next Generation Home RO Elements Dow's next generation elements have been precisely designed and will replace existing DOW ...

Get accurate results for your saltwater aquarium with our simple handheld colorimeter.   Our alkalinity colorimeter bridges th...

Designed to bring simplicity to salinity testing during the any process, the HI98319 Marine Salinity Tester measures conductivity (EC) to deter...

Introducing our revolutionary Pelleted High Performance Activated Carbon – the ultimate solution for achieving unparalleled water purification and ...

he HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwate...