Bulk Color-Change Deionization Resin. Enough to fill one refillable DI cartridge.
* Make sure to pack the cartridge tightly to avoid channeling / bypass.
The "Care Magnet" is a breath of fresh air in the field of aquarium pane cleaner design, consisting of an ergonomic handle and special plastic blades made of wear-resistant high performance plastic. The patented slim Care Magnet i...
Salt Mix Bucket makes 50 gallons of saltwater
You asked for it. We delivered it.
Formulated from natural seawater chemistry
Mixes to 1.025 g/cm 3
Composed of ACS-and USP-grade ingredients
Extensively tested for ove...
The Syncra Silent is new range of energy efficient pumps that is absolutely silent. Don`t be fooled - these pumps are powerful and versatile. Ideal for fresh and salt water aquariums, protein skimmers, indoor fountains, water-cool...
Red Sea`s Reef Foundation Kit includes high accuracy titration tests for the accurate measurement of the elements calcium, magnesium and alkalinity (KH) which are the basic foundation elements of coral skeletons. All of these elem...
All the titanium heating elements must be used with temperature controllers.
Heating indicator light
High quality titanium element
Excellent corrosion resistance
Double heating tube
Heavy duty grounded cabl...
Cobalt Aquatics Neo-Therm 25 Watt Aquarium Heater
The Cobalt Aquatics Neo-Therm electronic heaters have an impressive accuracy of ±0.5ºF. The electronic thermostat has an ultra-fast response time that helps to keep the temper...
1.25–1.95 mm diameter grain size. A revolution in reef-keeping! This is the one you’ve been reading about in all the hobbyist publications. This grade of aragonite is specifically engineered for plenum-type nitrate reducing beds o...
Seachem Stability 500 ml Stability™ will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome". Stability™ is formulated specifi...
SeaChem MatrixCarbon is a truly unique activated carbon, bead shaped for optimal hydrodynamics. This provides maximum water flow and contact with a high density of adsorptive sites without the compacting common to granular activat...
AquaMaxx Fluidized Media Reactors
AquaMaxx Fluidized Media Reactors are multi-purpose aquarium water filters specially designed for use in marine and reef aquaria. Insert your media of choice to help eliminate organic polluta...
3-IN-1 COMBO Keeping your aquarium clean has never been simpler. We’ve combined 3 of the best filter media sponges to trap free floating particulate matter, remove pollutants that cause odor and discoloration, and combat phospha...
Previously, Reef Interests was the first to develop and present the NP reducing BioPellets which are mostly removing Nitrogen waste products and along with a smaller amount of Phosphates. DVH has been hard at work developing a ne...
SeaChem ParaGuard ™ is the only fish and filter safe aldehyde based (10% by weight) parasite control product available. Unlike highly toxic and difficult to use formalin based medications, ParaGuard™ contains no formaldehyde or me...
AquaticLife RO Buddie - 50GPD
AquaticLife RO Buddie is a compact 3-stage RO unit that provides economical filtered water using sediment, carbon cartridges with a TFC membrane. The Sediment and Carbon cartridges are self-contai...
E.S.V. B-Ionic Seawater System Salt Mix - Makes 50 Gallons of Saltwater A unique solution to many of the problems associated with all dry synthetic seawater blends. Problem: All dry blends may not be homogenous resulting in co...
Part #: 270521 Description: 3/4" FPT Threaded Single Union Ball Valve Note: While this fitting has a union, it is not designed to seal/hold water when the union is removed. The union is primarily for maintenance of the ball valv...
TrueLumen PRO LED Striplights
A New Standard in Illumination
These sleek, extruded aluminum strip lights are packed with ultra-bright LEDs rivaling even the brightest T5`s. Completely water resistant and low-voltage provid...
Helps maintain a balanced nutrient-limited marine aquarium by enabling the hobbyist to enhance the rate of microbial growth and reproduction, increasing the rate of phosphate-reduction and denitrification; this is o...
Replacement impeller for Danner Mag-Drive Supreme 3 and 5 Pump. Includes impeller shaft and bushings.
All New Ocean Direct™ Live Sand Simply Natural – Enjoy this real Caribbean live sand in a breathable bag with no added chemicals or special processing. Simply Effective – Ocean Direct™ is different than all other live sand prod...
The Refractometer is a must have for all aquarium hobbyists. The proper salinity is crucial for the survival and health of your fish and corals . This high quality refractometer is extremely accurate and easy to use and calibr...
High Accuracy Seawater Refractometer!
Red Sea’s Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater at a temperature of 25°C/77°F.
Most refractometers used within the aquariu...
SpectraPure, Inc.® Revolutionary MaxCap® Super DI™ cartridge has over 4 times more removal
efficiency than any other Mixed-Bed or Hi-Silica de-ionizing cartridge. When placed upstream
of your existing DI cartridge, the life of you...
Replacement Needle Wheel Impeller for the G-300 used on the ASM Mini-G skimmer