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Neptune Apex Optical Level Sensor (OS-1) Optical sensors are the go to sensor if you want a reliable sensor over a long period. The Neptune Optical...

Nylon Monofilament Mesh Filter Socks - Easy to wash

The ATK (Automatic Top-off Kit) is a simple, standalone, and complete solution for replacing water lost to evaporation.   The new aquarium hobbyist...

The PMUP V2 is a 24VDC submersible pump that was designed to directly connect to the DC24 accessory ports on either the 1Link module OR the same...

39W Coral Plus T5 HO Fluorescent 36″ by ATI ATI 39W Coral Plus T5 High-Output Fluorescent bulb combines the properties of a Blue Plus (~50%), Aquab...

½" x 2½" Ball-Socket Flare Nozzle (Loc-Line) 

New Version 3! In stock as of June 5, 2019   ELIMINATE THE UNCERTAINTY ASSOCIATED WITH MECHANICAL REFRACTOMETERS The IceCap Digital Pocket Tester i...

Carbon dioxide granules. Our bulk CO2 absorbent media is approx 25% cheaper than the competition and lasts up-to 50%* longer! The best Co2 media ab...

AquaStik Underwater Epoxy Putty by Two Little Fishies AquaStik Stone Grey. Underwater Epoxy Putty for marine and freshwater aquariums, Ponds and Pa...

The NEW Bubble Magus Curve5 Cone Skimmer - Needle wheel protein skimmer- Capability : 140 gallon- Pump: ROCK - SP1000- Pump power: 8W, 220V 50Hz /1...

Complete phosphate and nitrate free multi-nutrient with iron, cobalt and molybdenum for chaetomorpha growth and vigor in all marine systems ...

Two Little Fishies Phosban 150 Replacement O-Ring

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...

3/4 " Ball-Socket Round Nozzle (Loc-Line)

The HI774 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including co...

  XP Aqua RO/DI Flood Guardian - Electronic Auto Shut Off Valve Kit (AKA The Marriage Saver)   Tired of flooding your kitchen, garage or bathroom?...

Flipper Replacement Stainless Steel Blade for MAX Extra Large (2pcs per pkg)

Nylon Monofilament Mesh Filter Socks - Easy to wash

Designed to be used any place where you want to stop backflow and siphoning. These are among the highest quality check valves to be found....

High quality granulated active carbon. Eliminates undesirable chemical compounds in marine and freshwater aquariums. Carbon should be placed in flo...