Cleaner Shrimp Care Guide: The Reef Tank’s Most Fascinating Cleanup Crew Member

Cleaner Shrimp actively remove parasites from fish. This is not decorative behavior. It is functional and it works.

A cleaner shrimp is not decoration. It is the closest thing to a doctor your fish have.

A cleaner shrimp is not decoration. It is the closest thing to a doctor your fish have.

What It Is Actually Like Living With Cleaner Shrimp

A shrimp tank is a constant show of activity. Shrimp graze nonstop, picking at every surface with their tiny legs. They crawl over plants, substrate, and even each other. The movement never stops.

Molting is both fascinating and nerve-wracking. You will find translucent shed exoskeletons and panic thinking a shrimp died. It did not. But failed molts, where a shrimp gets stuck in its old shell, are always a risk.

Berried females carrying eggs under their tails are a highlight. You watch the eggs develop over two to three weeks, then suddenly dozens of tiny baby shrimp appear on your moss and plants.

Shrimp are escape artists during water changes. They jump into buckets, climb up siphon tubes, and end up in places you never expected. Always check your equipment and waste water for hitchhikers.

Table of Contents

• What Most Care Guides Get Wrong About Cleaner Shrimp The Reef Tank’s Most Fascinating Cleanup Crew Member
• Frequently Asked Questions
• A Brief Overview of Cleaner Shrimp
• Classification
• Origins And Habitat
• What Do They Look Like?
• Tank Requirements
• Temperament
• Tankmates
• What Do They Eat?
• Is the Cleaner Shrimp The Reef Tank’s Most Fascinating Cleanup Crew Member Right for You?
• How the Cleaner Shrimp The Reef Tank’s Most Fascinating Cleanup Crew Member Compares to Similar Species
• Final Thoughts
• The Reality of Keeping Cleaner Shrimp
• What It Is Actually Like Living With Cleaner Shrimp

The Cleaner Shrimp is one of the most rewarding invertebrates in the hobby, but it is also one of the most sensitive. Water parameters matter more here than with almost any fish. After keeping shrimp colonies for years, I have learned exactly what makes or breaks a thriving colony.

One parameter swing and an entire colony dies overnight. That is the reality of keeping Cleaner Shrimp.

A Cleaner Shrimp colony demands stable parameters every single day. One slip and you start over. This is a commitment to precision, not just maintenance.

Shrimp keeping is the most humbling branch of the aquarium hobby. The water does not care about your experience level.

What Most Care Guides Get Wrong About Cleaner Shrimp The Reef Tank’s Most Fascinating Cleanup Crew Member

Guides often lump the cleaner shrimp the reef tank’s most fascinating cleanup crew member in with fish care, but invertebrates have completely different sensitivities. Copper-based medications, for instance, are lethal. That’s something every keeper needs to know before adding any treatment to the tank. Acclimation is another area where most guides fall short. A quick float and dump can kill inverts. Drip acclimation over 45 to 60 minutes is the minimum I’d recommend. The water parameter requirements are also stricter than most guides suggest. In my 25+ years in the hobby, I’ve learned that stability beats perfection every time, but with inverts, even small swings can cause problems.

The Reality of Keeping Cleaner Shrimp

Water parameters rule everything. Shrimp are more sensitive to water chemistry than any fish in your tank. Ammonia, nitrite, and sudden pH swings kill shrimp instantly. A cycled, stable tank is absolutely mandatory before adding your first shrimp.

Copper is lethal. Many fish medications contain copper. Even trace amounts from pipes, fertilizers, or treatments will wipe out an entire shrimp colony. Read every label before adding anything to a shrimp tank.

Molting problems are the most common killer. Shrimp need consistent mineral content to molt successfully. Unstable GH and KH levels cause failed molts, which are fatal. Remineralized RO water gives you the most control.

Biggest Mistake New Owners Make

Adding shrimp to an uncycled tank or a tank that was recently medicated. Both scenarios kill shrimp within days. The tank needs to be fully cycled and medication-free for at least two weeks before shrimp go in.

Expert Take

Drip acclimation is not a suggestion. It is mandatory. Every shrimp I have lost in 25 years died because I rushed the acclimation or ignored a parameter difference.

Frequently Asked Questions

How many cleaner shrimp can you keep together?

You can keep multiple cleaner shrimp together without issues, as they are peaceful toward their own kind. A pair or small group works well. They will often establish cleaning stations together and may even form mated pairs in the aquarium.

Will cleaner shrimp clean fish in an aquarium?

Yes, cleaner shrimp will set up cleaning stations and actively clean parasites and dead tissue from fish. You will often see fish line up near the shrimp, and the shrimp will climb on the fish to pick off parasites. This behavior is one of the most fascinating things to watch in a reef tank.

Are cleaner shrimp reef safe?

Cleaner shrimp are completely reef safe and will not harm corals or other invertebrates. They are one of the safest additions to any reef tank. They spend their time scavenging for food, cleaning fish, and picking through the rockwork.

How long do cleaner shrimp live?

Cleaner shrimp live 2 to 3 years in a well-maintained reef tank. They molt regularly as they grow, and you may find their exoskeletons around the tank. Leave the molted shells in the tank, as other inhabitants will consume them for calcium.

Can cleaner shrimp live with other shrimp species?

Yes, cleaner shrimp coexist peacefully with fire shrimp, peppermint shrimp, and other ornamental shrimp species. Avoid housing them with large predatory fish or aggressive crabs that might view them as food.

A Brief Overview of Cleaner Shrimp

Scientific Name	Lysmata amboinensis
Common Names	Cleaner shrimp, skunk cleaner shrimp, scarlet skunk cleaner shrimp, red skunk cleaner shrimp, and Pacific cleaner shrimp
Family	Hippolytidae
Origin	Indo-Pacific and the Red Sea
Diet	Omnivore
Care Level	Easy
Temperaturement	Peaceful
Minimum Tank Size	10 Gallons
Max Size	2 – 3 inches with very long antennae
Temperature Range	76 – 82 degrees F
pH Range	8.0 – 8.4
Salinity	1.025 or 35 PPT
Reef Safe	Yes
Available As Tank Bred	Rare
Filtration/Water Flow	Low
Water Type	Saltwater
Breeding	Egg-layer
Difficulty to Breed	Difficult to breed
Compatibility	Species-only tank or community tank

Classification

Phylum	Arthropoda
Class	Malacostraca
Order	Decapoda
Family	Lysmatidae
Genus	Lysmata
Species	L. Amboinensis (De Man, 1888)

Origins And Habitat

As one of their common names suggests, the Pacific cleaner shrimp is found throughout the Pacific Ocean, more specifically in the Indo-Pacific around Indonesia and Australia. Some populations have also been observed in the Red Sea and have some variation in appearance.

There, these invertebrates play an important role in shallow reef ecosystems. They is found hiding in the cracks and crevices of the rockwork all the way from 16 to 131 feet in depth. As we’ll discuss more later, these saltwater shrimp set up cleaning stations where fish knowingly travel to get cleaned¹.

Interestingly, cleaner shrimp are born as males but transition into hermaphrodites as they mature. This is known as protandric simultaneous hermaphroditism and is unique to the Lysmata genus as well as a few other decapods.

On the reef, cleaner shrimp will commonly be seen in pairs but are relatively solitary creatures. They will also form pairs in the aquarium and breeding them is relatively straightforward. However, raising the fry after the eggs hatch is incredibly difficult. This makes coming across tank-raised cleaner shrimp very rare or even nonexistent.

Why Are They Called So?

Cleaner shrimp are very aptly named after their mutualistic relationship with fish. These invertebrates set up service stations on the reef where they wait for both predatory and nonpredatory fish to swim by to be cleaned. As the fish floats near the rock, the shrimp picks at the sides and gills of the fish–sometimes even venturing inside the mouth–to clean parasites, dead tissue, mucus, and other microorganisms.

In both the wild and in the reef aquarium, these shrimp have a unique habit of rocking their legs side to side. Studies have found that this behavior increases when predatory fish are present, possibly signaling their beneficial intentions and asking them to not be eaten.

This study also shows that shrimp are much less likely to clean when in the presence of predatory species and unideal cleaning conditions than when servicing nonpredatory fish in a comfortable environment.

Cleaners vs. Fires

When talking about cleaner shrimp, in general, hobbyists are referring to Lysmata amboinensis. However, fire shrimp (Lysmata debelius), also known as blood shrimp and scarlet cleaner shrimp (pictured above), are also considered as a type of cleaner shrimp.

In comparison, fire shrimp are often a lot less reliable at cleaning than true cleaner shrimp. These bright red invertebrates are great at bringing color to the home aquarium, but they fail to set up true cleaning stations and often stay hidden in the rockwork instead. On top of that, many hobbyists have experienced their fire shrimp going after and killing less active invertebrates, including cleaner shrimp.

There are some benefits to having a fire shrimp, though. For one, their intense color is unparalleled. Though they might stay hidden a better majority of the time, their bright red coloration does not go missed.

In addition, they have been known to eat small pest anemones, like Aiptasia. However, if you’re dealing with an extensive Aiptasia problem, then there are much better shrimp options to choose from, like peppermint shrimp (Lysmata wurdemanni), which form hunting groups that specifically prey on those anemones.

Though you may get lucky and have an especially Aiptasia-hungry fire shrimp!

What Do They Look Like?

Cleaner shrimp are a very simple-looking, yet appealing shrimp species. All cleaner shrimp will look the same, with red, white, and yellow coloration. There have been some observed variations between those collected from the Red Sea and Indo-Pacific individuals, but the difference is minimal.

Cleaner shrimp are also known as scarlet skunk cleaner shrimp due to their colors. They have two brilliant red lines along their back with dark yellow legs. Against those red lines, they have a long white stripe reaching from the antennae to the top of the head and all the way to the telson (tail). On the tail itself, there are multiple white spots.

This white line greatly resembles the signature patterns of a skunk, earning the skunk cleaner shrimp its name!

As a decapod, cleaner shrimp have ten legs. Cleaner shrimp also have small pincers that help them pick off foreign objects from fish as well as any microorganisms that is living in the crevices of the rockwork.

Tank Requirements

Cleaner shrimp do not need much to thrive, though they will die for apparently no reason at all. On average, they only live for a few years.

These shrimp are one of the larger shrimp species available in the saltwater aquarium, but one can still comfortably be kept in a 10 gallon aquarium; experienced keepers have kept them in 5 gallons, but those pico tanks should be kept for other smaller and more ornate species, like pistol shrimp (Alpheidae family).

While cleaner shrimp won’t explore all a reef tank has to offer, they is very active within their own given territory. These shrimp set up stations for fish to get cleaned, often at the top or side of the rockwork. They’ll use these rocks as areas to sleep and to hide while molting as well. There, they will scavenge for food in and around the rocks and accommodate any fish that want to be cleaned.

Cleaner shrimp do not require any special water parameters. However, like other invertebrates, they are extremely sensitive to traces of copper in the water as well as high nitrates. Contrary to popular belief though, invertebrates do need some traces of copper present in the water for healthy shell growth. Large amounts, like those found in some aquarium medications, will be deadly.

Otherwise, cleaner shrimp are hardy and can withstand some minor deviations from ideal water conditions.

Acclimation

Perhaps even more important than correct water conditions is giving ample time to slowly acclimate your new shrimp to your tank. Though hardy once established, this shrimp species is very sensitive to large and sudden changes in water parameters.

There are a few methods to guarantee that the transition from store to home aquarium is as safe as is for your new cleaner shrimp:

1. Bring a cooler or insulated bag to carry home the shrimp from the store. This will keep your cleaner shrimp in the dark while preventing drastic water temperature fluctuations and ultimately reducing stress.
2. Once at home, turn off the aquarium light and float the bag in the aquarium for about 15-20 minutes. This will give time for temperatures to match between the store water and the display water.
3. For almost all invertebrates, it is best to drip acclimate. Empty the store water and shrimp into a bucket and attach a drip acclimator. If you do not have one available, simply tie a loose knot in a piece of airline tubing to slow the flow.
4. Allow the water volume to double in the bucket. This takes about an hour, though you may continue acclimation for up to two hours for extra precaution.
5. When enough time has passed, it’s time to transfer the shrimp into the tank. It is best to use your hand or a plastic container as their legs and antennae can get stuck in netting. Your shrimp will likely head straight to the back of the tank and find coverage under a rock. Over the next few days, your cleaner will start to return to normal and set up a cleaning station somewhere in the tank.

If your shrimp does happen to lose a leg or antennae during the process, don’t worry. Shrimp have the incredible ability to rejuvenate lost limbs when they molt. Though this is not ideal, they should be okay as long as water conditions are favorable!

Temperament

Many beginner hobbyists see cleaner shrimp and see other shrimp, like fire shrimp, and think that the two species will get along in the same tank. Though cleaner shrimp are very peaceful, they can actually be a little temperamental towards other related species.

As mentioned before, cleaner shrimp set up very distinct territories. If another shrimp were to accidentally enter this territory, the cleaner shrimp would be very capable of defending itself. For this reason and for controlling bioload, multiple species of marine shrimp are not kept together unless it is a larger system.

Molting

As a crustacean, cleaner shrimp go through the molting process. This is when the shrimp sheds its exoskeleton in order to grow. This happens about every month or two and can make you believe that your shrimp is dead!

When cleaner shrimp molt, they shed their exoskeleton in one complete piece. This empty shell looks exactly like the shrimp only lifeless, which leads many hobbyists to believe that the molt is actually a carcass. During this time, your shrimp is at its most vulnerable and will be hiding in the back of the tank.

Make sure that your shrimp reappears after a few hours. Leave the molt in the tank as the shrimp will eat it and regain some calcium as well as other important nutrients. If you don’t see your shrimp after a few hours and you notice that bristle worms and other scavengers are starting to circle around it, then this might actually be your dead shrimp.

Are They Reef Safe?

Yes, cleaner shrimp are almost always reef safe; of course, there is always that rogue shrimp that will go off and consume a whole colony of zoanthids overnight., there is no cause for concern.

The biggest concern with cleaner shrimp, though, is them swimming over and irritating corals. If your shrimp decides to set up its territory right next to a sensitive coral, then it could cause some indirect irritation. This is nothing to worry about though, and the coral should adapt over time.

Tankmates

In addition to being reef safe, these shrimp can also be kept with an assortment of tankmates. They do best in community saltwater settings with wrasses, clownfish, and tangs. Cleaner shrimp will even do well with fish that aren’t reef safe like, butterflyfish and small angelfish.

As we mentioned earlier, though, they do service predators in the wild so those aren’t completely off the table either. Check out the video below by NatureFootage of a cleaner shrimp working on a Moray Eel!

What Fish Eat Them?

Many saltwater aquarium fish will gladly take the opportunity to munch on a shrimp. This includes obvious predators, like triggers, groupers, and puffers, though larger angels and wrasses might even try to nip at them.

As cleaner fish have gotten more expensive over the past few years in the aquarium hobby, it’s not recommended to try keeping them with larger, more aggressive species. However, experienced keepers intentionally introduce cleaner shrimp into their tanks as a live food option. Not only do cleaner shrimp naturally increase predatory instincts, but their hard chitin shells help keep beaks and teeth trimmed.

It is also important to note that on rare occasions, sea anemones have been known to catch and digest cleaner shrimp that may walk over their mouths.

What Do They Eat?

Cleaner shrimp are omnivores. While they get a lot of their required diet from picking parasites off of fish, this is not enough to sustain them. Luckily, they are not particularly picky about what they eat otherwise.

For the most part, cleaner shrimp will gladly eat any pellet or flake foods that are added to the tank. They will even help dispose of any fish or invertebrates that might have died and gotten stuck under a rock or in the back of the tank.

One thing cleaner shrimp won’t do though is treat an algae problem. Cleaner shrimp are sometimes lumped together with other cleanup crew members. While they are opportunistic feeders and largely scavengers, they won’t help contain algae or clean up fish waste. In fact, they’ll avoid setting up stations in algae-covered areas.

Can They Treat Ich?

Parasites contribute to cleaner shrimp diet to an extent. Though these invertebrates will definitely eat ich (cryptocaryon irritans) off of the sides and gills of fish, they shouldn’t be entirely depended on to treat the whole reef tank for an infestation.

In short, there are simply way too many parasites to control by one shrimp. The cryptocaryon irritans life cycle is also pretty complex and shrimp won’t eat them at all stages, leaving them to reproduce freely and replace those that have already been eaten.

This goes for other parasitic infestations as well, like marine velvet (Oodinium spp.); cleaner shrimp will eat those parasites, by they will by no means serve as a full treatment for those parasites.

Is the Cleaner Shrimp The Reef Tank’s Most Fascinating Cleanup Crew Member Right for You?

Before you add a cleaner shrimp the reef tank’s most fascinating cleanup crew member to your tank, it’s worth asking whether this species actually fits your setup and your goals. Here’s a quick breakdown to help you decide.

This species is a good fit if:

• Your tank is fully cycled and stable. Invertebrates are more sensitive to water quality swings than most fish.
• You’re not using copper-based medications. Copper is lethal to most invertebrates.
• You can provide the specific diet this species needs. Not all inverts eat the same things.
• Your tank mates won’t harass or eat the cleaner shrimp the reef tank’s most fascinating cleanup crew member. Many fish see invertebrates as food.
• You’re comfortable with drip acclimation. Inverts need slower transitions than fish.
• Your water parameters are within range and, more importantly, consistent.

If most of those points line up with your setup, the cleaner shrimp the reef tank’s most fascinating cleanup crew member is worth serious consideration. If several don’t, it’s better to choose a species that matches your tank now rather than trying to make it work.

How the Cleaner Shrimp The Reef Tank’s Most Fascinating Cleanup Crew Member Compares to Similar Species

Want easy, forgiving shrimp? Start with cherry shrimp. Want a challenge with stunning payoff? Get crystal reds and commit to RO water.

Choosing between similar species is tricky. Here’s how the cleaner shrimp the reef tank’s most fascinating cleanup crew member stacks up against some common alternatives.

The cleaner shrimp the reef tank’s most fascinating cleanup crew member occupies a specific niche in the aquarium hobby, and direct comparisons really depend on what you’re looking for. In my experience, the most common question people ask is whether they should choose the cleaner shrimp the reef tank’s most fascinating cleanup crew member or something similar that’s more widely available. The answer comes down to three things: tank size, water parameters, and what other fish you’re keeping. If your setup matches what the cleaner shrimp the reef tank’s most fascinating cleanup crew member needs, it’s hard to beat. If not, there are alternatives worth exploring.

Final Thoughts

If you’re looking for something to fill your tank up with something other than a fish, then a cleaner shrimp is definitely something to consider. Though they’ve become reasonably more expensive over the past few years, their fascinating cleaning mutualism with fish is a behavior that can’t be seen with other invertebrates.

These shrimp carry the bioload of a small fish and should not be considered a member of the cleanup crew. Otherwise, they are very forgiving of small fluctuations in water parameters as long as they are acclimated correctly!

References

• Seriously Fish — Species profiles and care data
• FishBase — Taxonomy and scientific data
• Practical Fishkeeping — Husbandry and care advice