Upgrade your aquarium’s heating system with the robust and space-saving Finnex THD-300S Compact Titanium Heating Element. Engineered for durability and efficiency, this 300-watt heating tube is built from corrosion-resistant titanium, making it...

The HC-820M Finnex heater controller uses an advanced digital processor that monitors and controls the water temperature in your aquarium. The heating controller receives temperature data from the remote sensor in the aquarium. The remote...

Zip Bag Md Medium-mesh filter bag with zipper Ideal for intermediate sized media Corrosion-proof zipper 32 cm x 14 cm (12.5” x 5.5”) No Strings or Ties The Medium Zip Bag™ is a mesh bag for holding filtration media...

The Bag™ Welded filter bag ideal for all filtration Resealable locking closure 180 micron mesh Resistant to bleach, caustics, and acids The Bag™ is an innovative welded filter bag with a durable non-stitched seam. It has a 180...

Parameter Value Iodide 52,840 ppm Molybdenum 9,983 ppm Nickel 444.300 ppm Zinc 371.400 ppm Manganese 259.900 ppm Copper 240.500 ppm Selenium 127.000...

Parameter Bromide Value 100,000 ppm Characteristics Regular application intensifies pigmentation and improves robustness of cnidarians. Active Components: Potassium bromide, anhydrous, USP. Basic...

Parameter Iron Value 10,000 ppm Characteristics Increases iron, arguably the most important trace element to photoautotrophs (including zooxanthellae), in recirculating seawater systems, particularly critical in those...

Parameter Iodide Value 100,000 ppm Characteristics Provides iodide (contains no iodine), required for development of chitin (exoskeletal material for shrimp and other crustaceans) and antioxidant activity critical...

Parameter Boron Value 100,000 ppm Characteristics Regular application intensifies red pigmentation and improves pH stability. Active Components: Potassium tetraborate, hydrated, USP. Basic...

A3 Apex Pro Base Unit Maybe your original base unit was damaged, or you’re upgrading an older setup to the A3 platform. Either way, this A3 Apex Pro Base Unit is exactly what you need. Plug all of your current Neptune Systems accessories into it...

Trident NP Calibration Solution This calibration solution is designed for the Neptune Systems Trident NP to keep nitrate and phosphate readings accurate over time. It’s the same solution included with the standard reagent refill kits...

Premium Ceramic Plugs and TileThese handcrafted frag tiles are made with inert ceramic material, making them immediately safe for aquarium use. Our black tiles have a solid colored core so no more exposed white interiors if chipping occcurs.No Curing...

Premium Ceramic Plugs and TileThese handcrafted frag tiles are made with inert ceramic material, making them immediately safe for aquarium use. Our black tiles have a solid colored core so no more exposed white interiors if chipping occcurs.No Curing...

Teal Blue Torch Coral 1 - 2 Polyps in size.  If you are looking to start buying coral online to add to your reef tank, this is the best choice. Teal Blue Torch Coral is a stationary LPS branching coral. They are a fast growing meaty...

Infused Holy Grail Torch WYSIWYG (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Infused Holy Grail Torch WYSIWYG is for beginners and experts alike...

Jawbreaker Discosoma Mushroom WYSIWYG C4 (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Jawbreaker Discosoma Mushroom WYSIWYG C4 is for beginners and...

Jawbreaker Discosoma Mushroom WYSIWYG C3 (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Jawbreaker Discosoma Mushroom WYSIWYG C3 is for beginners and...

Jawbreaker Discosoma Mushroom WYSIWYG C2 (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Jawbreaker Discosoma Mushroom WYSIWYG C2 is for beginners and...

Jawbreaker Discosoma Mushroom WYSIWYG C1 (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Jawbreaker Discosoma Mushroom WYSIWYG C1 is for beginners and...

Blue Lemonade Goniopora WYSIWYG A2 (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Blue Lemonade Goniopora WYSIWYG A2 is for beginners and experts alike...

Radioactive Favia Colony WYSIWYG (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Radioactive Favia Colony WYSIWYG is for beginners and experts alike...

Blue Pixie Dust Asian Acan WYSIWYG (Egg crate squares are 3/4") If you are looking to buy vibrant color coral online to add to your reef tank, this is the best choice. Blue Pixie Dust Asian Acan WYSIWYG is for beginners and experts alike...

Reefer 425/525 G2/G3 Bubble Trap Foam Replacement Reefer 425/525 G2/G3 Bubble Trap Foam

ONE FREE ITEM PER ORDER.  THIS STICKER IS FREE WITH ANY ORDER OVER $50.  JUST ADD $50 WORTH OF PRODUCTS TO YOUR CART AND THIS ITEM WILL BE FREE. Sticker is 4" by 3.5" on white adhesive background.

Masstick is a blend of diverse, all natural, self-production, highly technical compounds, providing natural and balanced nutrition for omnivorous fish and marine invertebrates. Comprised of raw materials of marine origin. It does not contain...

Masstick is a blend of diverse, all natural, self-production, highly technical compounds, providing natural and balanced nutrition for omnivorous fish and marine invertebrates. Comprised of raw materials of marine origin. It does not contain...

PhosBan® Reactor Extension kit. This kit contains all the parts needed to make a flexible and space-saving pipe connection for installing the PhosBan Reactor 150 hanging on the back of an aquarium, or on the side of a filter sump. Packaged on an...

WormBitz is a new addition to our line of single-ingredient foods for aquariums. No fillers, no additives, just freeze-dried marine polychaete worms with superior nutritional value and an aroma and taste that appeals to finicky fishes in both marine and...

FritzGuard is a safe and effective pH buffered water conditioner that neutralizes toxic chlorine, chloramines and heavy metals found in tap water. FritzGuard promotes healing and reduces fish stress with Aloe Vera, Vitamin E, and provides necessary...

EasyReefs Easy Masstick: The "Stick-Anywhere" Food, Now Ready-to-Use Revolutionize the way you feed your reef with EasyReefs Easy Masstick. This innovative, self-adhesive fish food offers all the legendary nutritional benefits of the original Masstick...

EasyReefs Easy Masstick: The "Stick-Anywhere" Food, Now Ready-to-Use Revolutionize the way you feed your reef with EasyReefs Easy Masstick. This innovative, self-adhesive fish food offers all the legendary nutritional benefits of the original Masstick...

EasyReefs Easy Masstick: The "Stick-Anywhere" Food, Now Ready-to-Use Revolutionize the way you feed your reef with EasyReefs Easy Masstick. This innovative, self-adhesive fish food offers all the legendary nutritional benefits of the original Masstick...

EasyReefs Easy Masstick: The "Stick-Anywhere" Food, Now Ready-to-Use Revolutionize the way you feed your reef with EasyReefs Easy Masstick. This innovative, self-adhesive fish food offers all the legendary nutritional benefits of the original Masstick...

Fauna Marin Dino X: The Ultimate Solution for Dinoflagellates and Nuisance Algae Reclaim the beauty of your reef tank with Fauna Marin Dino X, a powerful and highly effective liquid algaecide specifically formulated to combat the most stubborn...

The Hanna Instruments HI98309 is a specialized, high-precision pocket tester designed specifically for monitoring the purity of deionized, distilled, and ultra-pure water. As the first pure water tester to measure in 1/1000ths of micro-Siemens...

Hanna Instruments HI98130 Combo pH/EC/TDS/Temperature Tester (High Range) Streamline your water analysis with the Hanna Instruments HI98130, a high-precision, 4-in-1 pocket tester designed for high-range measurements. This professional-grade device...

Take the guesswork out of water testing with the Hanna Instruments HI98129, the industry-standard "Combo" tester. Engineered for professionals in hydroponics, aquaculture, water treatment, and laboratory research, this 4-in-1 pocket meter provides...

Elevate your water testing with the Hanna Instruments HI98128 pHep®5, a high-precision, pocket-sized tester designed for professionals who demand laboratory-grade accuracy in the field. Combining a dual-level LCD, advanced automation, and a rugged,...

Product: Red Sea ReefMat 250 Drive Unit. Part Number: R35485. Function: Powers the fleece roller to remove detritus from marine aquariums. Compatibility: Specifically for the ReefMat 250 model. Features: Part of Red Sea's...

This high-performance recirculation pump is designed for aquarists who demand absolute reliability and near-silent operation. Engineering by the renowned German brand TUNZE, the Silence 1073.040 is a versatile powerhouse suitable for both freshwater and...