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...

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...

PLEASE ONLY PURCHASE 1x Two Month Supply.  We will not be able to restock any reagents for the next 30 days. 2-month reagent kit (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day)...

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...

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,...

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...

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...

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...

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...

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...

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...

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.

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...

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<

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...

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,...

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...

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...

(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...

Don’t be fooled by its compact demeanor! The Nero 5 punches well above its class delivering true 3000 gallons per hour (gph) of flow. That’s the kind of flow that keeps your tank clean and your...

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...