Shrimp in a Reef Tank: Which Species Work and Which Don't

Hektor Jorgo By Hektor Jorgo Published Updated 4 min read
A cleaner shrimp with long white antennae perched on coral rock in a reef tank

Quick Facts

Popular Reef-Safe Shrimp
Cleaner shrimp (Lysmata amboinensis), peppermint shrimp, fire/blood shrimp, and various other Lysmata species
Cleaner Shrimp Role
Known for picking parasites and dead tissue from fish — a behavior sometimes called a 'cleaning station'
Peppermint Shrimp Role
Often added specifically for aiptasia control, though results can be inconsistent
Not All 'Shrimp' Are Reef-Safe Additions
Mantis shrimp are predatory hitchhikers, not intentional reef tank stock, and are incompatible with most cleanup crew
General Compatibility
Most popular reef shrimp species are considered reef-safe with corals, but predator fish can still eat them
Molting
Like all crustaceans, reef shrimp molt periodically and are more vulnerable during this process
Group Behavior
Some species (cleaner shrimp) can be territorial in pairs/groups depending on tank size and species
Sourcing
Reef shrimp are typically purchased intentionally, unlike many crabs and snails that arrive as hitchhikers

"Shrimp" covers a surprisingly wide range of animals in a reef tank context — from popular, intentionally stocked cleanup crew species to one of the most notorious predatory hitchhikers a reef keeper can encounter. Knowing which is which matters.

Short Answer

Several shrimp species are popular, generally reef-safe additions to reef tanks — cleaner shrimp, peppermint shrimp, and various brightly colored Lysmata species are the most common. These shrimp are typically purchased intentionally, don't target healthy coral tissue, and can offer genuinely useful behaviors (cleaner shrimp picking parasites from fish, peppermint shrimp's reputation for eating aiptasia). The exception that trips people up is mantis shrimp — despite the shared name, mantis shrimp are aggressive predators that typically arrive as unwanted hitchhikers rather than intentional stock, and they're largely incompatible with the rest of a reef tank's inhabitants, including other shrimp. The practical takeaway: "shrimp" as a category includes both some of the most beneficial and one of the most disruptive animals you might find in a reef tank.

A handful of species make up the bulk of intentionally kept reef tank shrimp:

  • Cleaner shrimp (Lysmata amboinensis) — perhaps the most iconic, known for picking parasites and dead tissue off fish at informal "cleaning stations," a behavior that's often genuinely observable in a home tank
  • Peppermint shrimp — smaller, often added specifically for their reputation as aiptasia eaters
  • Fire shrimp, blood shrimp, and other Lysmata species — generally valued for bright red/white coloration and general scavenging behavior

These species share a few traits that support their reef-safe reputation: they're scavengers and opportunistic feeders rather than coral predators, they're generally peaceful toward most tank inhabitants (though see the molting note below), and they've been kept successfully in reef tanks for a long time, giving keepers a good sense of what to expect.

The Exception: Mantis Shrimp

If there's one shrimp-related surprise that catches reef keepers off guard, it's mantis shrimp. Despite the name, mantis shrimp are a completely different category of animal from the cleanup-crew species above — they're fast, powerful predators that most often arrive as hitchhikers on live rock, sometimes going unnoticed for weeks or months while growing.

Our guide on mantis shrimp tank mates covers this in detail, but the short version is: a mantis shrimp is generally incompatible with the rest of a reef tank's inhabitants, including the cleaner and peppermint shrimp described above, which fall well within a mantis shrimp's prey size range. If you're noticing unexplained losses among small cleanup crew — including shrimp you intentionally added — an unnoticed mantis shrimp hitchhiker is worth ruling out.

Molting and Vulnerability

Like all crustaceans, reef shrimp molt periodically as part of normal growth — shedding their exoskeleton and forming a new one. During and shortly after a molt, a shrimp's new shell is soft and the animal is more vulnerable than usual, similar to the vulnerability period described for emerald crabs in reef tanks. This is a normal part of the shrimp's life cycle, not a sign of a problem, but it's worth keeping in mind when evaluating tank mate compatibility — a tank that's generally fine for an adult shrimp day-to-day might pose more risk during a molt.

Breeding and "Baby" Shrimp

It's not unusual for keepers to notice a cleaner shrimp carrying a mass of eggs, or to spot something tiny and shrimp-like in the tank and wonder if it's a baby shrimp. In most cases, reef shrimp larvae require planktonic rearing conditions that a typical reef tank doesn't provide, so visible "baby shrimp" surviving to adulthood in the display tank is uncommon — covered in more detail in our guide on baby cleaner shrimp.

Quick Reference

  • Cleaner shrimp, peppermint shrimp, and other Lysmata species are popular, generally reef-safe additions
  • Cleaner shrimp are known for picking parasites/dead tissue off fish at "cleaning stations"
  • Peppermint shrimp have a reputation for eating aiptasia, though results vary
  • Mantis shrimp are a very different animal — predatory hitchhikers, not reef-safe cleanup crew
  • Reef shrimp molt periodically and are more vulnerable during and just after a molt
  • Reef shrimp can carry eggs, but visible surviving "baby shrimp" in the display tank is uncommon
  • Unexplained cleanup crew losses can sometimes point to an unnoticed mantis shrimp hitchhiker

Frequently Asked Questions

What shrimp species are commonly kept in reef tanks?

A handful of species make up most of the intentionally stocked reef tank shrimp: cleaner shrimp (Lysmata amboinensis), well known for picking parasites and dead tissue off fish at informal 'cleaning stations'; peppermint shrimp, often added specifically to help with aiptasia (a pest anemone); and various fire, blood, and other Lysmata species, generally valued for their bright coloration and scavenging habits. These species are generally considered reef-safe with corals — they don't typically target healthy coral tissue — though as with most reef tank inhabitants, individual behavior can vary.

Are reef shrimp safe with corals and other invertebrates?

Generally, yes — the commonly kept reef shrimp species don't typically pose a direct threat to corals. Their diet leans toward scavenging, detritus, and (for cleaner shrimp specifically) parasites and dead tissue from fish, rather than live coral polyps. The bigger compatibility question usually runs the other direction — whether other tank inhabitants pose a threat to the shrimp. Predatory fish, and especially mantis shrimp (a very different animal despite the shared name), can prey on smaller reef shrimp. Our guide on mantis shrimp tank mates covers why mantis shrimp — typically unwanted hitchhikers rather than intentional stock — are largely incompatible with the rest of a reef tank's inhabitants, shrimp included.

Will peppermint shrimp actually get rid of aiptasia in my tank?

Sometimes, but results are inconsistent enough that peppermint shrimp shouldn't be relied on as a guaranteed fix. Peppermint shrimp have a reputation for eating aiptasia, and many keepers do report some level of control after adding them — but individual shrimp vary, aiptasia populations vary in size and density, and a peppermint shrimp that's well-fed on other foods may have less incentive to target aiptasia specifically. For tanks with a significant aiptasia problem, peppermint shrimp are often considered one tool among several rather than a standalone solution — our guide on coral dips and aiptasia covers a complementary approach focused on preventing aiptasia from arriving on new coral frags in the first place.

Can reef shrimp breed in a home aquarium, and will I see baby shrimp?

Adult reef shrimp, especially cleaner shrimp, can and do carry eggs in home aquariums — but seeing those eggs develop into visible juvenile shrimp in the same tank is uncommon. Most reef shrimp larvae go through a planktonic stage that requires specific conditions (food, water flow, lack of strong filtration pulling larvae away) that a typical reef tank doesn't provide. This is covered in more detail in our guide on baby cleaner shrimp, which addresses what keepers are actually seeing when they notice eggs or tiny shrimp-like animals in a reef tank.

Sources & Further Reading

  1. Reef Shrimp Species & Compatibility — Reef2Reef
  2. Reef Tank Cleanup Crew Guides — Reef Builders
Hektor Jorgo

About the Author: Hektor Jorgo

Co-Founder & Marine Biologist

Hektor is a co-founder of Sea Life Planet and has kept reef and freshwater aquariums for over 15 years. He holds a background in marine biology and focuses on species care accuracy, water chemistry, and tank husbandry.

Related Articles

A cleaner shrimp carrying a visible mass of greenish eggs under its abdomen
Corals & Invertebrates

Baby Cleaner Shrimp: Can They Survive and Grow in a Home Tank?

Seeing your cleaner shrimp carrying eggs is exciting — but turning those eggs into surviving juvenile shrimp in a display tank is a much bigger hurdle than most keepers expect.
A mantis shrimp with large folded raptorial claws peeking out from a crevice in live rock
Corals & Invertebrates

Best Mantis Shrimp Tank Mates (and Why There Usually Aren't Any)

If a mantis shrimp has shown up in your reef tank, it almost certainly arrived as a hitchhiker — and the realistic answer to 'what can live with it' is very little.
A small white and orange-spotted porcelain crab perched on the tentacles of a sea anemone
Corals & Invertebrates

Are Porcelain Crabs Reef Safe? Diet, Anemone Hosts & Tank Mates

Porcelain crabs filter feed with fan-like mouthparts and often live symbiotically with anemones — making them one of the more genuinely reef-safe crabs sold for marine tanks.
A small blue leg hermit crab crawling across live rock near a snail shell in a reef tank
Corals & Invertebrates

Which Hermit Crabs Aren't Reef-Safe? Species and Real Risks to Know

Hermit crab reef-safety mostly comes down to size and identification. The small dwarf species sold individually are usually fine — the risk is bulk 'assorted' mixes and shell-stealing as crabs outgrow their homes.
A small amphipod crustacean crawling across live rock in a reef tank, illuminated by blue lighting
Corals & Invertebrates

Amphipods in a Reef Tank: Pest, Food Source, or Healthy Sign?

Spotting tiny shrimp-like critters darting through your rockwork at night usually means amphipods — and in most reef tanks, that's a sign of a healthy system, not a pest problem.