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,...

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...

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...

"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 th

"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 th

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...

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...

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...

Chaeto ships UPS 2 Day Air - We only ship Chaeto Monday, Tuesday & Wednesday till 1 pm to prevent it from sitting in UPS trucks/warehouses over a weekend. Spaghetti Algae, as Chaetomorpha is...

Simplify your reef supplementation without sacrificing coral growth, coloration, or ionic stability. Tropic Marin All-For-Reef Powder delivers an ultra-concentrated, easy-to-mix mineral and trace...

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...

2-month reagent kit (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day).  The reagent kit has at least 240 alkalinity tests and 120 tests each of Calcium and Magnesium. Kits...

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,...

The gold standard for generating flow in reef tanks, the VorTech® is unsurpassed in beauty and functionality. Dimensions Dry-Side: 3.00 x 2.25 inches (76.0 x 57.0 mm) Wet-Side: 3.00 x 3.00...

Ready-to-Use Complete Reef Mineral & Trace Element Solution Streamline your reef tank maintenance and ditch the hassle of multi-channel dosing setups. Tropic Marin All-For-Reef (1000 ml / 1 Liter)...

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...

Calcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few other constituents are carbonate and bicarbonate. These...

The Hanna Marine Alkalinity (dKH) Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely...

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...

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,...

"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...

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...

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...

Reef Frenzy is a premium, all-in-one food for marine fish, corals, and invertebrates, designed to provide all the necessary nutrients for a thriving reef aquarium. Favored by hobbyists and endorsed...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

Foundation Pro Multi test kit High accuracy titration tests for the accurate measurement of the<

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,...

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...

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...

(Reagents SOLD SEPARATELY) The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this information to...