Saltwater Inverts for Sale: Best Invertebrates for Reef Tanks and Care Tips

Saltwater Inverts for Sale: Best Invertebrates for Reef Tanks and Care Tips

From $11.99 Nassarius Snails to stunning Fire Shrimp and Peacock Mantis Shrimp, Dr. Reef’s Quarantined Fish has the most complete invert lineup online. Every fish is health-screened before it gets shipped. Overnight UPS delivery. 

What makes a reef tank feel truly alive? It is not just the fish swimming through the water column. It is the small, fascinating, endlessly interesting creatures crawling across the glass, hiding in rock crevices, sifting through the sand, and cleaning every surface of your tank around the clock. It is the invertebrates.

Saltwater invertebrates, or inverts, are some of the most underrated and underappreciated members of any reef tank. They do jobs that fish simply cannot do. They clean algae from glass, glass from sand, and rock from detritus. Some are so beautiful they stop people in their tracks. Others are so unusual they look like something out of a science fiction film.

And right now, Dr. Reef’s Quarantined Fish has an outstanding lineup of over 87 quarantined invertebrates across 12 different categories, all verified healthy and ready to ship overnight to your door. Let this guide walk you through every category, what lives inside it, why it matters for your reef, and exactly what you can expect to pay.

What Is a Saltwater Invertebrate and Why Does Your Reef Tank Need One?

An invertebrate is simply any animal without a backbone. In the reef hobby, this covers a huge range of creatures including shrimp, crabs, snails, anemones, clams, starfish, urchins, sea cucumbers, feather dusters, jellyfish, and nudibranchs.

Many of these animals form what reef keepers call the cleanup crew, or CUC. This is the team of invertebrates that handles the biological maintenance of your tank. They eat algae, consume detritus, stir the sandbed, sift waste from the substrate, and keep your rock work clean and healthy. Without a good cleanup crew, algae builds up, waste accumulates, and water quality declines. With a solid cleanup crew, your tank runs cleaner and your water stays more stable.

Beyond the cleanup crew, some inverts are simply breathtaking display animals. A Peacock Mantis Shrimp, a Fire Shrimp, a Harlequin Shrimp, or a colorful Starfish will stop every visitor to your home cold. These animals bring a layer of beauty and wonder to a reef tank that fish alone cannot provide.

The great news is that Dr. Reef’s Quarantined Fish carries inverts in every category, at every price point, all quarantined and health-checked before they ship to you.

Shrimps at Dr. Reef’s Quarantined Fish

The shrimp lineup at Dr. Reef’s is one of the most complete available from any online retailer. Here is exactly what is available right now and what each one brings to your tank.

Peppermint Shrimp | $16.99 | Rated 5 Stars

This is the most affordable shrimp on the entire Dr. Reef’s website and one of the most useful invertebrates in the hobby. The Peppermint Shrimp is famous for one thing above all else. It eats Aiptasia. Aiptasia is a pest anemone that spreads rapidly through reef tanks and stings corals. Peppermint Shrimp actively hunt and consume these nuisance anemones, making them an invaluable addition to any reef dealing with an Aiptasia problem. At $16.99, they are the most affordable biological solution available.

Pistol Shrimp | $21.99

The Pistol Shrimp is one of the most fascinating animals in the entire reef hobby. It produces a snapping sound so powerful it creates a cavitation bubble that can stun or kill small prey. It is a natural partner for Watchman Gobies and forms one of the most iconic symbiotic relationships in reef keeping. The goby stands guard while the shrimp digs and maintains their shared burrow. Watching this partnership in action is something reef keepers never get tired of. At $21.99, it is an incredible value.

Curly Que Snapping Shrimp | $29.99

A visually striking shrimp with distinctive curled antennae and excellent cleaning behavior. This shrimp adds personality and biological function to any tank. It works well with gobies and generally coexists peacefully with other tank inhabitants.

Banded Coral Shrimp | $31.99

The Banded Coral Shrimp is bold, colorful, and unmistakable with its striking red and white banding and long white antennae. It is one of the most visually dramatic shrimp you can add to a reef tank. It acts as a cleaner, picking parasites off fish and keeping rock work tidy. Only keep one per tank, as two will fight.

Pederson Cleaner Shrimp | $34.99

A delicate, beautiful shrimp that forms a natural cleaning station partnership in a reef tank. It removes parasites and dead tissue from fish that visit its perch, creating a living, working ecosystem inside your aquarium. Peaceful and reef safe.

Sexy Dancer Shrimp | $34.99

This tiny shrimp gets its name from the constant swaying motion of its abdomen as it moves. It is one of the most entertaining invertebrates to watch in a nano reef tank. Sexy Dancer Shrimp are best kept in groups and love to perch on coral branches and rock surfaces. They are fully reef safe and add a magical, animated quality to any display.

Red Banded Pistol Shrimp | $44.99

A more visually dramatic version of the standard Pistol Shrimp, featuring bold red banding that makes it easy to spot in the tank. Same fascinating snapping behavior and same excellent symbiotic partnership potential with Watchman Gobies. A great upgrade from the standard Pistol Shrimp.

Cleaner Shrimp | $49.99 | Rated 5 Stars

The Cleaner Shrimp, also known as the Skunk Cleaner or Pacific Cleaner Shrimp, is one of the most beloved and recognized invertebrates in the reef hobby. Bright red and white with long white antennae, it sets up a cleaning station on the rock work and waves its antennae to attract fish. Large reef fish will actually line up and sit still while the Cleaner Shrimp picks parasites off their bodies. It is one of the most astonishing things you will ever see in a tank. Rated 5 stars by Dr. Reef’s customers.

Fire Shrimp | $69.99 | Rated 5 Stars

The Fire Shrimp is simply one of the most beautiful invertebrates in the ocean. Deep ruby red with bright white spots and long white antennae, it glows like a jewel in any reef tank. It is a cleaner shrimp that prefers to hide in dark caves and crevices, coming out to wave its antennae and attract fish for cleaning. Peaceful, stunning, and one of the most popular inverts in the hobby.

Harlequin Shrimp | $69.99

The Harlequin Shrimp is a specialist predator that feeds exclusively on starfish. It is one of the most visually spectacular shrimp in the world, with bold white and red or blue spotted patterns that look almost painted on. Harlequin Shrimp are typically kept in pairs and require a steady supply of starfish to eat, usually small Asterina or Chocolate Chip Starfish. They are not for beginners, but for experienced hobbyists they are a true collector’s showpiece.

Tiger Pistol Shrimp | $29.99

A hardy, active pistol shrimp with beautiful tiger-like banding. Excellent goby partner and a great value at $29.99.

Peacock Mantis Shrimp | $149.99

The Peacock Mantis Shrimp is in a class entirely by itself. It is not a true shrimp at all but a stomatopod, one of the most sophisticated predators in the ocean. It strikes with the force of a bullet and can break aquarium glass if not carefully managed. But its colors are jaw-dropping. Iridescent blues, greens, and reds cover a body that looks like it was designed by an artist. It must be kept alone in a species-specific tank. Not for beginners, but absolutely unforgettable for experienced hobbyists.

Zebra Mantis | $179.99

A rare, stunning variation of the mantis shrimp with dramatic striped patterning. A true collector’s animal for hobbyists who want something that nobody else has in their tank.

Snails at Dr. Reef’s Quarantined Fish

Snails are the unsung heroes of every reef tank. They crawl across glass, rocks, and sand consuming algae and detritus around the clock, doing the work that keeps your tank looking clean between water changes. Dr. Reef’s carries 14 different snail species, covering every cleaning need a reef tank could have.

Margarite Snail | Starting at $11.99

One of the most affordable snails available anywhere online. Margarite Snails are active algae grazers that work on glass, live rock, and hard surfaces. An essential and budget-friendly member of any cleanup crew. Available in packs for greater coverage.

Cerith Snail | Starting at $14.99

The Cerith Snail is a long, spiral-shelled snail that spends most of its time buried in the sandbed, sifting through it for detritus and algae. It is one of the best sand-stirring snails available and helps oxygenate your substrate, preventing the buildup of toxic hydrogen sulfide pockets. An absolute must for any tank with a deep sandbed.

Nassarius Snail Small | Starting at $11.99

Nassarius Snails are detritus eaters that bury themselves in the sand and emerge explosively when food hits the water. They are often called the tank vacuum because of how efficiently they clean up leftover food and organic waste that sinks to the substrate. Watching a group of Nassarius Snails surge up from the sand when you drop food in the tank is one of the most entertaining things in reef keeping.

Nassarius Snail Large | Starting at $19.99 | Rated 5 Stars

The larger version of the classic Nassarius, with even greater cleaning capacity. Rated 5 stars and highly recommended for larger tanks where more substantial detritus accumulates.

Crown Conch | $19.99

A dramatic-looking snail with a spiked, crown-like shell. The Crown Conch is an excellent scavenger that consumes organic waste and detritus across the sandbed. It adds an interesting visual element while performing genuine cleanup work.

Fighting Conch | $19.99

The Fighting Conch is one of the best sandbed cleaners in the hobby. It plows through the sand constantly, consuming detritus, leftover food, and algae. Despite its name, it is peaceful with fish and corals. The name comes from its habit of flipping itself aggressively when disturbed. An essential cleanup crew member for any tank with a sandbed.

Gold Ring Cowrie | $19.99

A beautifully patterned snail with a smooth, glossy shell covered in distinctive gold ring markings. The Gold Ring Cowrie is a visual addition to the tank as well as a functional grazer. It feeds on algae films on glass and hard surfaces and stays relatively small.

Nerite Snail | Starting at $14.99

Nerite Snails are some of the hardest-working algae grazers in the hobby. They eat green film algae, diatoms, and microalgae from glass, rock, and hard surfaces with impressive efficiency. Their small size makes them perfect for cleaning tight spaces where larger snails cannot reach.

Turbo Snail | Starting at $24.99

The Turbo Snail is a heavy-duty algae grazer built for larger tanks. It can consume impressive quantities of hair algae, green film algae, and diatoms in a single night. It is one of the most effective algae-consuming snails available and a cornerstone of any serious cleanup crew.

Astraea Snail | Starting at $29.99

The Astraea Snail features a beautiful star-shaped shell and is one of the most effective grazers for glass and rock surfaces. It handles green film algae and diatoms extremely well. The only limitation is that it cannot right itself if flipped, so occasionally check on them and flip any that have ended up on their backs.

Bumble Bee Snail | Starting at $39.99

A tiny snail with bold black and yellow banding that honestly looks like a little bee. Bumble Bee Snails are detritus eaters and sandbed cleaners. They are also visually charming and add an interesting detail to any reef tank.

Tiger Conch | $16.99 | Rated 5 Stars

The Tiger Conch is one of the top-rated inverts on Dr. Reef’s website. It is an active sandbed sifter that constantly works through your substrate consuming detritus and algae. Rated 5 stars by customers. A customer favorite and one of the best value purchases in the entire invert lineup.

Tiger Cowrie | $39.99

A large, glossy-shelled snail with dramatic spotted patterning. The Tiger Cowrie is a visual showpiece that also performs genuine grazing work on rock surfaces. Its polished shell and distinctive pattern make it one of the most recognizable snails in the hobby.

Trochus Snail | Starting at $39.99 | Rated 5 Stars

The Trochus Snail is considered by many reef keepers to be the best all-around cleanup crew snail available. It grazes algae from glass and rock, can right itself when flipped unlike Astraea Snails, and reproduces naturally in reef tanks. Rated 5 stars by Dr. Reef’s customers. Available in packs for full-tank coverage. A truly essential addition to any reef cleanup crew.

Other Invert Categories at Dr. Reef’s

Beyond shrimps and snails, Dr. Reef’s Quarantined Fish carries inverts across 12 full categories including Anemones, Clams, Crabs, CUC Packs, Cucumbers, Feather Dusters, Jellyfish, Nudibranchs, Starfish, and Urchins. Here is a quick overview of what each category brings to your reef. 

Anemones (16 products) cover the full range of hosting anemones for clownfish, including Rose Bubble Tip Anemones, Long Tentacle Anemones, and more. These are some of the most popular inverts in the hobby and form the living heart of any clownfish display tank.

Clams (6 products) include Tridacna clams, which are solar-powered filter feeders that come in stunning electric blue, gold, and multicolored varieties. A large healthy clam is one of the most visually impressive additions you can make to a reef tank.

Crabs (9 products) include the famous Emerald Crab at $15.99, along with Hermit Crabs and other reef-compatible crab species. Crabs handle specific algae types and waste that snails miss.

CUC Packs (5 products) are bundled cleanup crew packages that combine multiple species for comprehensive tank coverage. These packs represent outstanding value for hobbyists who want to establish a complete cleanup crew in one order.

Cucumbers (2 products) include Sea Cucumbers, which are sand sifters that process substrate continuously, breaking down organic waste and keeping your sandbed clean and oxygenated.

Feather Dusters (3 products) are filter-feeding worms with dramatic fan-like crowns that open and close in the current. They are beautiful display animals that add an exotic, otherworldly element to any reef.

Jellyfish (2 products) are available for hobbyists with dedicated jellyfish tanks. Dr. Reef’s carries Moon Jellyfish and other species for this specialized but rapidly growing corner of the hobby.

Nudibranchs (7 products) include some of the most wildly colorful and exotic animals available to reef hobbyists. Nudibranchs are specialized predators and are generally best suited for experienced hobbyists who understand their specific dietary needs.

Starfish (6 products) include various species for display and sand-stirring. Some starfish are reef safe while others are not, so always check compatibility before adding any starfish to a reef system.

Urchins (4 products) are powerful algae grazers that consume hair algae, coralline algae, and encrusting algae from rock surfaces. The Halloween Urchin is a top-rated species at Dr. Reef’s and one of the most visually striking urchins available.

Essential Care Tips for Saltwater Invertebrates

Keeping invertebrates healthy requires attention to a few key areas. Here is what every hobbyist needs to know.

Stable Water Parameters Are Non-Negotiable

Invertebrates, especially shrimp and snails, are extremely sensitive to fluctuations in salinity and water chemistry. Rapid salinity changes can kill shrimp almost instantly. Always drip acclimate all invertebrates for at least 30 to 45 minutes when introducing them to your tank. Keep salinity between 1.025 and 1.026, temperature between 76 and 80 degrees Fahrenheit, and pH between 8.1 and 8.3.

Copper Is Lethal to All Invertebrates

Never use copper-based medications in a tank that contains invertebrates. Even trace amounts of copper will kill shrimp, snails, crabs, and most other inverts very quickly. If your tank has ever been treated with copper, test it thoroughly and run activated carbon for several weeks before adding any invertebrates.

Feed Your Cleanup Crew

Most hobbyists assume snails and shrimp feed themselves entirely. In a heavily stocked tank with plenty of algae and waste, this is mostly true. But in a clean, well-maintained tank, supplement your cleanup crew with algae wafers, dried seaweed, and small meaty foods to keep them healthy and active.

Match Your Invert to Your Tank Type

Some inverts are not reef safe. Larger crabs, certain starfish, and some shrimp can damage corals or prey on smaller tank inhabitants. Always check compatibility before purchasing. Dr. Reef’s compatibility chart at drreefsquarantinedfish.com makes this easy.

Give Them Time to Acclimate

Newly arrived invertebrates may hide for several days after being introduced to a new tank. This is normal behavior. Do not panic if you do not see them for a few days. Give them time and they will settle in, begin exploring, and start doing their jobs.

Questions and Answers About Saltwater Invertebrates

Q: What is the best first invertebrate for a brand new reef tank?

A: For a brand new reef tank that has just completed its nitrogen cycle, the Fighting Conch at $19.99 and the Nassarius Snail at $11.99 are outstanding first choices. They are hardy, inexpensive, and immediately start performing useful cleanup work. A Peppermint Shrimp at $16.99 is also a great early addition, especially if Aiptasia is already present.

Q: How many snails do I need for my tank?

A: A general rule of thumb is one snail per gallon of tank volume for a lightly stocked tank. A 50-gallon tank might start with 30 to 50 snails of mixed species for comprehensive coverage. Dr. Reef’s CUC Packs take the guesswork out of this calculation by providing pre-assembled packages sized for different tank volumes.

Q: Can I keep shrimp with fish that might eat them?

A: Lionfish, large triggers, groupers, and hawkfish will eat shrimp. Most reef-safe fish like clownfish, gobies, chromis, and tangs leave shrimp completely alone. Always check the compatibility chart before combining shrimp with fish.

Q: What is the difference between a Pistol Shrimp and a Mantis Shrimp?

A: Both produce powerful striking or snapping actions, but they are very different animals. Pistol Shrimp are small, peaceful reef-safe animals that snap to stun small prey and communicate with their goby partners. Mantis Shrimp are aggressive predators that must be kept alone. They are far more powerful and can cause serious damage to other tank inhabitants and even to aquarium equipment. Both are extraordinary animals, but they require completely different tank setups.

Q: Why should I buy inverts from Dr. Reef’s instead of a local fish store?

A: Local fish stores often receive invertebrates in poor condition after multiple stops in the supply chain. Invertebrates are especially fragile and sensitive to stress and poor water quality during transport. Dr. Reef’s quarantine process means every invert has been observed, acclimated, and confirmed healthy before it ships. You also get overnight UPS delivery direct to your door, which minimizes transit stress compared to multiple handling steps through a traditional supply chain.

Q: Do the inverts at Dr. Reef’s come with a live arrival guarantee?

A: Yes. Dr. Reef’s backs every livestock purchase with a three-day live arrival guarantee. Their terms and conditions page at drreefsquarantinedfish.com has full details on the process for reporting any issues.

Q: Can I order multiple invertebrates together in one shipment?

A: Absolutely. In fact, ordering multiple inverts together is one of the smartest ways to shop. You save on shipping, your cleanup crew is established faster, and you can reach the $500 threshold for free shipping more easily. CUC Packs are specifically designed for this purpose and offer bundled pricing for comprehensive cleanup crew coverage.

Q: What is the best way to acclimate a new invertebrate?

A: Drip acclimation is the gold standard for all invertebrates. Float the bag in your tank for 15 minutes to equalize temperature, then set up a drip line that adds tank water slowly over 30 to 45 minutes. This gradual process allows the invert to adjust to your tank’s salinity and chemistry without the shock of sudden change. 

Why Dr. Reef’s Quarantined Fish Is the Best Place to Buy Saltwater Invertebrates

Here is a truth that experienced reef keepers know very well. Invertebrates are the most sensitive animals in your tank. They cannot handle poor water quality, disease exposure, or stress during shipping as well as fish can. An invertebrate that arrives stressed, sick, or carrying a pest organism can cause far more damage to your tank than a single bad fish purchase.

This is exactly why the quarantine process at Dr. Reef’s Quarantined Fish matters so much for inverts. Every shrimp, every snail, every crab, every starfish that ships from drreefsquarantinedfish.com has been through a professional health screening process first. That means you are not gambling. You are investing in animals that a team of experienced reef keepers has verified are healthy, active, and ready to thrive in your tank.

Dr. Reef’s carries 87 quarantined invertebrate products across 12 categories, making it one of the most comprehensive invert selections available from any online marine livestock retailer in America. Whether you need a single Peppermint Shrimp at $16.99 to handle an Aiptasia problem or a full mixed cleanup crew pack to stock a brand new 100-gallon reef, Dr. Reef’s has exactly what you need at a price that makes sense. 

Payments are accepted through PayPal, Stripe, and Venmo. Overnight UPS shipping goes out Tuesday through Thursday, with deliveries arriving Wednesday through Friday. Free shipping kicks in on orders over $500. Every order is backed by a three-day live arrival guarantee.

The team at Dr. Reef’s loves this hobby as much as you do. They are reef keepers themselves and they bring that passion and expertise to every order they pack and every customer question they answer. When you shop at Dr. Reef’s, you are not just buying an invertebrate. You are getting the guidance, support, and quality assurance of a team that genuinely wants your reef tank to succeed.

Final Thoughts: Build Your Cleanup Crew the Smart Way

The invertebrates in your reef tank are working for you every single hour of every single day. They clean what you cannot see, eat what you cannot reach, and maintain the biological balance that keeps your entire tank healthy. They deserve to be bought from a seller who takes their health as seriously as you take your tank.

Head to drreefsquarantinedfish.com right now and explore the full invertebrate lineup. With 87 products across 12 categories, all quarantined and health-verified, you will find everything your reef needs to thrive. Your cleanup crew is waiting.