Mr. Saltwater Tank

Tired of battling persistent bubble algae and unsightly hair algae? The Emerald Crab (Mithraculus sculptus) is your diligent, all-natural solution. Hailing from the vibrant reefs of the Caribbean, this small but mighty invertebrate is a must-have for any...

Tropic Marin Pro-Reef Sea Salt – 200 Gallon Bucket (Germany) At a Glance The Gold Standard for Modern Reef Keeping. Tropic Marin Pro-Reef is the premium, pharmaceutical-grade salt mix engineered specifically for reef aquariums that require...

Red Sea’s Coral Pro Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Coral Pro Salt is ideal for reef aquariums, in particular for...

"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.   Rock Sizing:...

The POLY-FILTER is for filtering and purifying both fresh and salt water aquariums. It is a formulation of a special patented material bonded to a synthetic matrix. By means of a unique proprietary process, the POLY-FILTER is made impervious to salt and...

Apex-Pods™ are live Apocyclops panamensis copepods.  They are an excellent food source that attracts finicky fish, such as mandarin dragonets, pipefish, Anthias sp. and wrasses. Shipping: Click Here to Learn More about Shipping...

The ATI ICP-OES Pro kit is identical to the original ATI ICP-OES test. The ATI ICP-OES Pro Water Analysis is a laboratory water analysis of 43 parameters in a reef tank that provides a complete overview of a tank's health, which is...

Tropic Marin® All-For-Reef Powder is an ultra-concentrated mineral blend, with which an easy-to-use, highly concentrated all-round solution for supplying all key minerals and trace elements in newly established and averaged reef aquariums...

It's important to keep your PUMP in prime operating condition to ensure long-life and efficient operation. Over time, natural mineral deposits will form in your pump, and if untreated, may cause undesirable operation or even failure. Sicce’s Pump...

The Reef's Tireless Janitor Discover the hidden gem of aquarium clean-up crews with the incredible Brittle Starfish. A close relative of the Serpent Star, the Brittle Star is a master scavenger, using its long, slender, and highly flexible arms to...

The Heavyweight Champion of Clean-Up Crews is Here! When it comes to devouring nuisance algae, no snail does it better than the Mexican Turbo Snail (Turbo fluctuosus). Revered by hobbyists for decades, this species is the go-to choice for tackling...

ALL-FOR-REEF is an easy- to-use, highly concentrated solution for the supply of ALL essential minerals and trace elements in new or moderately stocked reef aquariums. Benefits: Complete mineral supply in only one solution The most...

Scarlet & Blue Leg Hermits are an essential part of any Clean up Crew.  This omnivore can access the smallest crevices and openings within aquascape to consume any nuisance algae including hair algae and cyanobacteria. They also will consume...

The Solar-Powered Bryopsis Eater Behold one of the most beautiful and biologically fascinating creatures in the marine hobby: the Lettuce Nudibranch. This stunning sea slug, with its frilly, ribbon-like body, truly resembles a vibrant piece of lettuce...

"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. Real Reef Branch Rock is our...

Super nutritious Natural Green Seaweed. Ideal for marine herbivores such as Tangs and Surgeonfish, Moorish Idols, Parrotfish, Angelfish, large Butterflyfish, and herbivorous freshwater fishes, such as Cichlids and Goldfish. Size: 30g (1 oz)

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...

The VeggieMag uses magnetic attraction instead of a suction cup to hold our SeaVeggies clip in place for windows up to 3/4” thick! It’s easy to position at any level in the aquarium, and easy to retrieve it without getting your hands wet...

Now Includes a Prepaid USPS First Class Shipping Label + Testing is Now Done in the USA! The results of this test provide you with the most detailed analysis of marine aquarium water you've ever seen, enabling you to understand exactly what's missing,...

Acclimating fish and coral gives your new arrivals and fin up for living in your tank. Drip acclimating is less intensive on you and easier on the fish. This simple, yet effective drip acclimator is used around our office and by Mr. Saltwater Tank...

200 gallon box, contains four individually packed 50 gallon bags. At Two Little Fishies the big picture has always been about Little details. That’s why we’ve made a new synthetic seawater mix like no other. We call it AccuraSea1. AccuraSea1...

IceCap Coral Feeder allows you to target feed corals and fish without getting your hands wet. Soft rubber tip prevents possible damage. Available in 15", 19", 27" & an expandable feeder to 39 inches.

The Salifert Core Alkalinity, Calcium, and Magnesium Combo Test Kit is a professional-grade testing suite designed specifically for reef aquarium hobbyists. This "Big 3" bundle provides the essential tools needed to monitor and maintain the chemical...

Nassarius snails are very active scavengers, feeding on crabs and carrion as dead fish, etc. They often burrow into marine substrates and then wait with only their siphon protruding, until they smell nearby food.  They are essential for aerating...

Cerith snails are small but elegant (white or dark) spiral shelled snails and are very active scavengers, feeding on crabs and carrion and dead fish, etc. They often burrow into marine substrates and then wait until they smell nearby food.  They are...

Astraea Snails are awesome herbivores that have an amazingly voracious appetite for nuisance algae in the home aquariums.  Astraea Snails graze on algae's such as diatoms and cyano. Clean Up Crews only Ship on Monday - Thursday to avoid...

Pure, pharmaceutical grade sea salt containing all trace elements found in natural seawater. From (osmosis-) water to seawater. Tropic Marin® Sea Salt CLASSIC is made up of all of the macro elements and trace elements in a...

Reef Fusion 1™ and Reef Fusion 2™ are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1™ provides calcium, while Reef Fusion 2™ provides alkalinity. When used together, the Reef...

Foundation Pro Multi test kit High accuracy titration tests for the accurate measurement of theFoundation elements Calcium, Magnesium and Alkalinity (KH) It’s all in the balance Red Sea’s FOUNDATION PRO Multi Test Kit includes high...

Coloration can vary - these are not always white, brown is common as well. Porcelain crabs live in abundance in Pacific Coast tide pools. They hide under stones, between mussels in mussel beds, among sponges and tucked into tufts of algae. Safely...

One (1) Medium Ocellaris Clownfish The Ocellaris, or False Percula Clownfish is the most popular clownfish species in the marine aquarium hobby. It is called the False Percula because it is closely related to, and easily confused with, the Percula...

A Living, Pulsing Flower for Your Aquarium Challenge everything you think you know about jellyfish with the mesmerizing Upside-Down Jellyfish. Unlike its free-floating relatives, this incredible species has evolved a lifestyle more like a coral or an...

This Energy Bar 832 was redesigned from the ground up.  Not only does it have eight 120V AC outlets, but it includes an internal 100W 24VDC power supply as well. That power supply feeds three built-in 1LINK ports as well as two 24VDC accessory ports...

Not quite Reef Saver, not quite Shelf.  Quite Unique. This Hybrid MarcoRock seems to do it all.  It lends itself to be quite easy and forgiving to work with.  The shelving aspect allows for ample ridges and overhangs, which truly is the...

Requires a Hydros to Control the Unit The HYDROS Dosing Pump is a simple and affordable way to automate the addition of liquid supplements, trace elements, and two-part solutions to an aquarium. Connect the Dosing Pump to any available HYDROS Control...

Scientific name: Neomysis japonica Excellent for Finicky Fish Mysis Shrimp are excellent for finicky eaters and one of the few frozen foods that seahorses will eat with no problems. They provide essential nutrients that help maintain high...

On average 3/4" - 1" in size.  If you are looking to start buying coral online to add to your aquarium, this is the best soft coral. Neon Green Star Polyps or GSP coral is a great beginner coral. It has bright neon green star shaped polyps. This...

Tropic Marin® K+ Elements contains a selection of essential cationic trace elements for the promotion of growth and the natural coloring of the corals. Trace elements are natural minerals which are needed by all aquarium inhabitants to...

Tropic Marin® A- Elements contains a selection of essential anionic trace elements for the promotion of growth and the natural coloring of the corals. Trace elements are natural minerals which are needed by all aquarium inhabitants to maintain...

Hanna Instruments HI97115UC Marine Master Bluetooth Multiparameter Checker Precision Testing for the Serious Reef Hobbyist Achieve unparalleled accuracy and control over your reef aquarium's water chemistry with the Hanna Instruments HI97115UC Marine...