Control Green or Brown Water in your Reef, Nano, or Seahorse Aquarium Use Dr.Tim's Re-Fresh in your reef, nano, or seahorse aquarium to control brown or green water issues. Re-Fresh is a potent combination of beneficial bacteria that work together to...

Calcium carbonate derived from oolitic aragonite is biogenic (created by living organisms) and naturally re-occurring. Protect the reef by using this superior and sustainable substrate. Add the Marine Accents to any aquarium for spectacular effect. Each...

Two 7" Filter Media Cups Our 7" Filter Media Cup will replace all those filter socks you have hanging around. Made out of a BPA free Polypropylene, this 4" Filter Media Cup is a solid one piece design, that holds any filter media. The round design...

7" Filter Media Cup Our 7" Filter Media Cup will replace all those filter socks you have hanging around. Made out of a BPA free Polypropylene, this 4" Filter Media Cup is a solid one piece design, that holds any filter media. The round design allows the...

Control Green or Brown Water in your Reef, Nano, or Seahorse Aquarium Use Dr.Tim's Re-Fresh in your reef, nano, or seahorse aquarium to control brown or green water issues. Re-Fresh is a potent combination of beneficial bacteria that work together to...

Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480 gallons (1,817 liters)32 oz bottle treats 960 gallons (3,634 liters)64 oz bottle treats 1,920...

Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480 gallons (1,817 liters)32 oz bottle treats 960 gallons (3,634 liters)64 oz bottle treats 1,920...

Choose the size best suited for your system:4 oz bottle treats 120 gallons (454 liters)8 oz bottle treats 240 gallons (908 liters)16 oz bottle treats 480 gallons (1,817 liters)32 oz bottle treats 960 gallons (3,634 liters)64 oz bottle treats 1,920...

Waste-Away lowers Phosphate and Nitrate plus it removes hidden wastes and dirt from gravel and coral beds! DrTim's Waste-Away is a unique combination of bacteria that attack and dissolve organic wastes in the aquarium quickly. Waste-Away works to unclog...

Waste-Away lowers Phosphate and Nitrate plus it removes hidden wastes and dirt from gravel and coral beds! DrTim's Waste-Away is a unique combination of bacteria that attack and dissolve organic wastes in the aquarium quickly. Waste-Away works to unclog...

Waste-Away lowers Phosphate and Nitrate plus it removes hidden wastes and dirt from gravel and coral beds! DrTim's Waste-Away is a unique combination of bacteria that attack and dissolve organic wastes in the aquarium quickly. Waste-Away works to unclog...

NP-Active Pearls are 100% biodegradable polymer bio-pellets DESIGNED and TESTED for aquatic systems that act as a carbon source for the growth of beneficial bacteria resulting in the removal of nitrate and phosphate from...

NP-Active Pearls are 100% biodegradable polymer bio-pellets DESIGNED and TESTED for aquatic systems that act as a carbon source for the growth of beneficial bacteria resulting in the removal of nitrate and phosphate from...

90 Cube Silicone Tray

NP-Active Pearls are 100% biodegradable polymer bio-pellets DESIGNED and TESTED for aquatic systems that act as a carbon source for the growth of beneficial bacteria resulting in the removal of nitrate and phosphate from...

NP-Active Pearls are 100% biodegradable polymer bio-pellets DESIGNED and TESTED for aquatic systems that act as a carbon source for the growth of beneficial bacteria resulting in the removal of nitrate and phosphate from...

Marco Rocks Frag Mounts-  Perfect for gluing small frags to keep them in place.  The heavy weight of natural rocks in addition to the natural limestone makes these the perfect choice for growing small frag.  We use them in areas of high...

The ever so popular MarcoRocks premium Shelf rock, now available in Nano size for smaller aquariums.  100% natural, made in the USA. Easily Stackable Natural limestone product from ancient reefs Can easily be glued together with Coral glue...

Aragonite is a carbonate mineral, one of the two most common, naturally occurring, crystal forms of calcium carbonate, CaCO3 (the other forms being the minerals calcite and vaterite). It is formed by biological and physical processes, including...

This bottle of reagent grade ammonium chloride is for use when fishless cycling. Concentration is 40 mg/ml of total ammonia-nitrogen (TAN). Dose 4 drops per gallon of aquarium water.*  Use with One and Only Nitrifying Bacteria...

1LINK is the marrying of the Aquabus communication standard, along with the power wires to drive higher power devices, all in one single cable.  One of the benefits of this is to avoid the need for a DC power brick for every 24V device in your...

The 1LINK module and the EB832 have two DC24 accessory outputs built that act like additional on/off outlets for DC24 devices. There are some Neptune Systems accessories, like our PMUP, that connect to these outputs directly.  There are...

Re-Fresh revitalizes old, green/brown aquarium water. Re-Fresh is a potent combination of beneficial bacteria that work together to maintain clear water, clean aquarium surfaces and eliminate unpleasant odors. Revitalizes old, green/brown...

Re-Fresh revitalizes old, green/brown aquarium water. Re-Fresh is a potent combination of beneficial bacteria that work together to maintain clear water, clean aquarium surfaces and eliminate unpleasant odors. Revitalizes old, green/brown...

Microcrustaceans such as amphipods, isopods and copepods are a vital component of nearly every aquatic ecosystem on Earth from marshy roadside ditches to the deepest seas. Copepods (subclass Copepoda) are especially important, as they are the most...

Microcrustaceans such as amphipods, isopods and copepods are a vital component of nearly every aquatic ecosystem on Earth from marshy roadside ditches to the deepest seas. Copepods (subclass Copepoda) are especially important, as they are the most...

Microcrustaceans such as amphipods, isopods and copepods are a vital component of nearly every aquatic ecosystem on Earth from marshy roadside ditches to the deepest seas. Copepods (subclass Copepoda) are especially important, as they are the most...

Microcrustaceans such as amphipods, isopods and copepods are a vital component of nearly every aquatic ecosystem on Earth from marshy roadside ditches to the deepest seas. Copepods (subclass Copepoda) are especially important, as they are the most...

This transformer will provide up to 60 watts of power at 12 volts DC. The switching power supply provides efficient power conversion and will accept an input voltage range between 100 volts and 240 volts AC, 50/60 Hz. Features LED indicator light that...

HydroPlex is a scientifically developed copper free, antibiotic free, broad spectrum water treatment that is effective for the control of parasites and microscopic organisms found in aquaria and ornamental ponds including bacteria, ciliated protozoa,...

Cut through surface distortion for a clear, top view of your reef with Eshopps Super Spy Coral Viewer. Great for top coral inspections.  Introducing ESHOPPS’ all new SUPER SPY S, under Alpha Class of The Color Series. Super Spy S is the...

4x Cut Outs to Cover the larger holes in the deluxe boards.

Get accurate water testing results with the HI780 Marine pH Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This pH tester's compact design fits in your pocket or stores easily in your shop. Easier to...

Get accurate water testing results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This nitrate tester's compact design fits in your pocket or stores easily in...

4x Cut Outs to Cover the larger holes in the deluxe boards.

These cut outs fit both the deluxe and standard holes for a cleaner appearance.  The package contains 3x solid plugs to completely cover a hole and 3x small cord cutouts.

Expand your Adaptive Reef Mounting board with a matching shelf. Perfect for mounting equipment like dosing pumps, dosing liquids, etc. Shelf Dimensions: 13"L x 8"W

Expand your Adaptive Reef Mounting board with a matching shelf. Perfect for mounting equipment like dosing pumps, dosing liquids, etc. Shelf Dimensions: 13"L x 8"W

The perfect solution to help organize and control the rat's nest of wires that most aquariums suffer from.  This board was created to easily allow you to mount an apex, power strips, equipment controllers and much more so they are easily accessed an...

The perfect solution to help organize and control the rat's nest of wires that most aquariums suffer from.  This board was created to easily allow you to mount an apex, power strips, equipment controllers and much more so they are easily accessed an...