"By the Pound" means you are choosing the weight of your rock.  Ex: Qty 5  is 5 Pounds of Rock, NOT 5 Rocks. Selling individual rocks is impossible due to the fact that every rock is unique in size/shape/weight.   Base Dry Rock - 20...

You can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed through CaribSea’s cooperation with public aquariums and zoological parks...

It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentration (part per Thousand)...

JW Pet Company Smart temp Thermometer Aquarium Accessory Large : JW Fusion Smart Temp Thermometer features a unique magnetic system that securely holds the thermometer in place inside of the aquarium with a magnet on the outside of the glass. It ranges...

Fritz ProAquatics Reef Pro Mix (RPM) is manufactured using only the highest quality raw materials. Formulated by researchers and marine scientists, RPM contains all of the necessary major and minor elements of natural sea water that are utilized by...

This refractometer does not come with a case or battery. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation. Each...

Versa-Top Hinged Glass Tops Keep fish and water in your aquarium where they belong.Our glass tops are perfect for reducing evaporation and keeping fish from jumping out of your aquarium. Each Versa-Top features a clear vinyl back strip that can be easily...

The standard aquarium is made with care to ensure that it can stand up to almost any application. These aquariums come in a wide range of sizes with black trim. Large aquariums feature one-piece center-braced frames that eliminate glass bowing. Aquariums...

Versa-Top Hinged Glass Tops Keep fish and water in your aquarium where they belong. Our glass tops are perfect for reducing evaporation and keeping fish from jumping out of your aquarium. Each Versa-Top features a clear vinyl back strip that can be...

Main features of Red Sea’s Seawater Refractometer include:Directly reads the absolutesalinity ofseawaterat25°C/77 0F ( No need for seawater or temperature compensation factors)Specifically designed for the ionic content of seawater (NSW) for...

Versa-Top Hinged Glass Tops Keep fish and water in your aquarium where they belong.Our glass tops are perfect for reducing evaporation and keeping fish from jumping out of your aquarium. Each Versa-Top features a clear vinyl back strip that can be easily...

Aqueon Forge aquarium stands offer the flexibility that hobbyists desire. Reversible wood panels allow you to choose your color: black or light brown. Each aquarium stand is equipped with a bottom shelf that can be utilized for a second tank or to...

LED boxed kits offer a complete habitat with LED lighting to bring the aquarium to life. The energy saving low-profile LED hood features cool white modules for total illumination, a convenient feeding door in the front and breakout sections in the back...

Featured is a LED filter cartridge change indicator light that flashes when the cartridge becomes clogged with debris, providing a reminder that it's time to replace the cartridge. A great benefit of the Aqueon QuietFlow filters is the internal pump...