Special Offer: Receive one free item with any order. Simply add the item to your cart—once your order subtotal exceeds...

The New AI Prime 16HD shares the same cluster as the Hydra 32HD and Hydra 64HD. The new Prime will...

This 5" x 8" x 1" zippered neoprene pouch is great for safely storing Apogee meters, microCache devices, and sensors....

AQQA Aquarium Rechargeable Air Pump 1.7W • Air pump with plug-in and rechargeable options, 2600mAh battery, auto-activate on power failure....

Fritz Super Sacks are premium quality refillable and reusable mesh bags suitable for most types of media - customize your...

Bacteria date is expired, but can still use or quick rinse and use as reg sand.   CaribSea Arag-Alive! CaribSea...

Two Little Fishies Little Reactor is the latest and smallest Two Little Fishies reactor. This 7" tall reactor is designed...

Brand New Clearance Item - short expire date of 10/2025. You can usually still get an extra 6-12 months past the...

50% OFF, these expire 6/2025, acutally probably good for another 6 months after that.   Silicate Test Silicate occurs especially...

  Most Impressive: More LEDs More PAR More Spread Improved Optic Design Improved Water Resistance Thinner Form Factor Dedicated Moonlight...

Combining the Spectrum Nutrition Formula with additional, naturally occuring Beta Carotene for bright, vibrant reds and oranges in fish that...

Submersible Aquarium Fluidized Bed Filter   • Tumble Aquarium Filter: - Imitates natural filtering, uses new material, cultivates bacteria, no...

Your Choice Aquatics Bio-Plate Filter Media - 2 Pack High Performance Bio Filter Media   Features - Increased Beneficial Bacteria...

The flows you chose Only you know what is best for your aquarium. Creating specific directional flow around sensitive corals,...

BRAND NEW EXPIRED, SAVE 60% - Factory sealed, expired dry food.  This expired on 5/2025, but it should still be...

Special Offer: Receive one free item with any order over $30.00. Simply add the item to your cart—once your order...

OPEN BOX RETURN- SAVE 20%   The TUNZE® Osmolator 3 nano is a simple and safe device with just one...

Please NOTE: Expired 06/2025 CaribSea Arag-Alive!" CaribSea has seven carefully selected Live Sand products to help you create the authentic...

The New AI Prime 16HD shares the same cluster as the Hydra 32HD and Hydra 64HD. The new Prime will...

  Most Impressive: More LEDs More PAR More Spread Improved Optic Design Improved Water Resistance Thinner Form Factor Dedicated Moonlight...

Kolar Labs 454g Crystal Cal Carbon Catalyic Kolar Labs Crystal Cal is a premium, laboratory grade, granular activated carbon designed...

Carbon Block Pre-Filter Cartridge for the RO Buddie. Features: Designed for use with the RO Buddie 50 & 100 GPD...

SAVE 60%- STILL GOOD TO USE- EXPIRE 10/25   Compete Diet for Marine Fish A special mix of Fauna Marin's...

BRAND NEW EXPIRED, SAVE 60% - Factory sealed, expired dry food.  This expired on 2/2025, but it should still be...

BRAND NEW EXPIRED, SAVE 60% - Factory sealed, expired dry food.  This expired on 2/2025, but it should still be...

Get your replacement reagents for your HI781 Marine Nitrate Low Range Colorimeter today. These high-quality reagents are manufactured in our...

OPEN BOX RETURN- SAVE 15%   World’s Smallest Dual-Sensor Aquarium Auto Top Off   Features: NEW! Controller programming & circuitry...

Reef Factory Dosing Pump Holder (1 unit) Mounting bracket for one dosing pump. With the shelf, you can aesthetically and...

CaribSea LifeRock Shelf Rock 40 lb LIFEROCK Real aragonitic base rock, not cement, no curing. Extensive macro and micro-porosity infused...

Brand New Older inventory, approx 10 years old. Never used.    Replacement Ecotech Magnet for MP20/40 Wet-Side

Dosing pump Head for Dosing pump / Dosing pump X3 / Dosing pump X4 / KH keeper Plus (blue) Head...

BRAND NEW CLOSEOUT SALE (USE COUPON CODE AQUAEL50)   ULTRA HEATER HEATING EXPERT A new generation of aquarium heaters distinguished...

AquaScraper Float Acrylic Algae Scraper Product Details and Features Works great on glass or acrylic aquariums, without scratching the surface....

Reaction HOB Hang-On-Back Aquarium Filter Product Details and Features JBJ Reaction Power Filters hang compactly on the back of your...

NEW OPEN BOX RETURN - Brand new condition. SAVE 15%   Clip-On UV Sterilizer Clear water is just a snap,...

OPEN BOX RETURN  - SAVE 25%- might have been used but looks pretty clean.  Green Killing Machine - Internal UV...

MECoral 32 oz Kh liquid solution is ready to use.  MECoral uses only Pharmaceutical Grade raw material to achieve the...

Pro Plumbing Kit ESHOPPS delivers the total package in simplicity and sophisticated design. Dedicated specifically for use with the Eclipse...

Pro Plumbing Kit ESHOPPS delivers the total package in simplicity and sophisticated design. Dedicated specifically for use with the Eclipse...