Ghost Shrimp Care Guide: Tank Setup, Feeding, Tank Mates & Breeding

Ghost shrimp (Palaemonetes paludosus) are one of the most affordable and widely available freshwater invertebrates in the hobby. Their transparent bodies, constant foraging behavior, and rock-bottom price tag make them a popular choice for beginners, cleanup crews, and breeding projects alike. This guide covers everything you need to keep ghost shrimp healthy and breeding — from tank setup and water parameters through feeding, compatible tank mates, and the larval rearing process that most other guides skip entirely.

What Are Ghost Shrimp?#

Ghost shrimp are small, nearly transparent freshwater shrimp native to the lakes, streams, and marshes of the eastern United States. They are sold in almost every pet store in the country — often as feeder shrimp — but they deserve better than that reputation. In the right setup, they are fascinating to watch, surprisingly active, and practically maintenance-free.

Species Overview and Scientific Name#

The ghost shrimp you find in freshwater aquarium shops almost always belong to the species Palaemonetes paludosus, a member of the family Palaemonidae. They are sometimes sold under the broader genus label Palaemonetes sp. because shipments from wholesalers occasionally include mixed species that are visually indistinguishable at point of sale. Their native range spans freshwater habitats across the eastern and central United States, from the Great Lakes basin south through the Gulf states (per American Currents, North American Native Fishes Association).

Why Hobbyists Love Them#

Three things drive the popularity of ghost shrimp. First, price: they typically cost $0.25-$0.50 each, making them the cheapest invertebrate in the hobby. Second, behavior: they spend the entire day scavenging, climbing plants, and investigating every surface in the tank. Third, their transparent bodies let you watch their internal organs work in real time — you can see the heart beating, food moving through the digestive tract, and eggs developing in gravid females. That alone makes them a hit with kids and biology-minded hobbyists.

Ghost Shrimp vs. Glass Shrimp vs. Grass Shrimp — Same or Different?#

These three names get used interchangeably in pet stores, but they can refer to different species. "Ghost shrimp" and "glass shrimp" usually mean Palaemonetes paludosus in the freshwater hobby. "Grass shrimp" often refers to Palaemonetes pugio or Palaemonetes vulgaris, which are brackish-water or saltwater species collected from coastal estuaries. The care difference matters: true freshwater ghost shrimp thrive in pure freshwater, while grass shrimp may decline without some salinity. If your "ghost shrimp" die quickly despite good water parameters, you may have received misidentified grass shrimp. Buy from a local fish store where staff can confirm the species rather than grabbing a bag from a feeder tank at a chain store.

Ghost Shrimp Tank Requirements#

Ghost shrimp are hardy, but a proper setup prevents the premature deaths that give them an undeserved reputation as disposable animals.

Minimum Tank Size and Stocking Density#

A 10-gallon tank is the practical minimum. Ghost shrimp produce minimal bioload individually, but the water volume in smaller tanks swings too quickly in temperature and chemistry for consistent shrimp health. Stock at 3-4 shrimp per gallon in a species-only tank, or 1-2 per gallon in a community setup. A 10-gallon comfortably supports 20-30 ghost shrimp with adequate filtration.

Substrate Choice: Why Fine Sand Beats Gravel#

Fine sand is the best substrate for ghost shrimp. They spend hours sifting through it for food particles, and their small legs navigate sand easily. Coarse gravel traps uneaten food and waste in gaps the shrimp cannot reach, leading to ammonia spikes in the substrate layer. If you prefer a planted tank, use our tool for calculating how deep to lay your sand substrate to balance plant root health with shrimp-safe substrate depth.

Water Parameters#

Stable water chemistry keeps ghost shrimp alive far more reliably than hitting exact numbers. Here are the target ranges.

Filtration: Sponge Filters vs. HOB#

Sponge filters are the best choice for any shrimp tank. They provide biological filtration, create gentle water flow, and pose zero risk to shrimplets. The sponge surface also grows biofilm that ghost shrimp graze on throughout the day.

Hang-on-back (HOB) filters and canister filters work, but you must cover the intake with a fine sponge pre-filter. Without one, baby shrimp and even small adults get pulled into the intake and killed. A stainless steel mesh or foam pre-filter sponge is a non-negotiable accessory for any power filter in a shrimp tank.

Ghost Shrimp Diet and Feeding#

Ghost shrimp are the definition of low-maintenance eaters. They are opportunistic omnivores that scavenge constantly, but targeted feeding keeps them healthy and supports breeding.

What They Eat in the Wild vs. Captivity#

In their native waterways, Palaemonetes paludosus feed on detritus, decaying plant matter, biofilm, algae, and tiny invertebrates. In captivity, they fill the same role: cleaning up uneaten fish food, grazing on biofilm, and picking through substrate. A mature, planted tank provides a significant portion of their diet without any supplemental feeding.

Best Foods: Sinking Pellets, Algae Wafers, and Blanched Vegetables#

Supplement with sinking pellets or algae wafers 2-3 times per week. Shrimp-specific foods from Hikari, GlasGarten, or Shrimp King provide balanced nutrition with the minerals needed for healthy molting. Blanched zucchini, spinach, and cucumber are excellent vegetable supplements — blanch for 30-60 seconds, cool completely, and drop a small piece into the tank. Remove uneaten portions after 12-24 hours.

Are Ghost Shrimp Effective Algae Eaters?#

Compatible Tank Mates#

Ghost shrimp are prey animals. Tank mate selection is about finding species that will leave them alone, not species that "might" coexist.

Safe Companions#

Small, peaceful fish with tiny mouths are the safest options. Ember tetras, chili rasboras (Boraras brigittae), celestial pearl danios, otocinclus catfish, and dwarf corydoras (Corydoras pygmaeus, Corydoras habrosus) all coexist well with ghost shrimp. Nerite snails are ideal invertebrate companions — they eat algae, cannot breed in freshwater, and ignore shrimp completely. Amano shrimp and mystery snails also work without conflict.

Fish to Avoid#

Bettas, cichlids of any kind (including rams and apistos), gouramis larger than honeys, loaches, and large tetras will actively hunt ghost shrimp. Angelfish are a common mistake — they look peaceful but will eat every shrimp in the tank within days. Crayfish and freshwater crabs are also predatory toward shrimp.

Keeping Ghost Shrimp in a Species-Only Tank#

A species-only setup eliminates predation risk entirely and maximizes breeding success. Ghost shrimp are active and entertaining enough to carry a tank on their own, especially in a planted layout with driftwood and moss. The colony will grow rapidly without predation pressure, and you can observe natural behaviors — territorial scuffles, mating dances, and larval development — that you would miss in a community tank.

Ghost Shrimp Breeding#

Breeding ghost shrimp is straightforward in terms of getting eggs. The hard part — and the part most guides skip — is keeping the larvae alive after hatching.

Sexing Ghost Shrimp#

Females are noticeably larger than males at maturity (around 1.5 inches vs. 1 inch). Gravid females develop a visible green egg saddle along the underside of the abdomen. Males are slimmer with a flatter underside. Sexing is unreliable in juveniles; wait until shrimp reach adult size for accurate identification.

Breeding Setup and Triggering Spawning#

Ghost shrimp breed readily in stable conditions without special intervention. Consistent parameters within the ranges above, a photoperiod of 8-10 hours, and a varied diet are sufficient. A partial water change (10-15%) with slightly cooler, dechlorinated water often triggers molting in females, followed by the release of pheromones that initiate mating. After mating, the female carries fertilized eggs on her swimmerets for 2-3 weeks.

Raising Larvae: The Step Most Guides Skip#

This is where ghost shrimp breeding differs fundamentally from cherry shrimp or other Neocaridina species. Cherry shrimp hatch as fully formed miniatures that eat the same foods as adults. Ghost shrimp hatch as free-swimming planktonic larvae that cannot eat adult foods and require microscopic nutrition for the first 5-7 days of life.

Move the berried female to a separate, gently filtered rearing tank before the larvae hatch. A bare-bottom 5-gallon tank with a sponge filter turned to minimal flow works well. After she releases the larvae, return the female to the main tank. Feed green water or infusoria multiple times daily in small amounts. Larvae undergo several metamorphic stages over 1-2 weeks before settling into the juvenile shrimp form.

How Long Until Juveniles Are Safe in the Main Tank#

Juvenile ghost shrimp can be moved to the main tank once they have completed metamorphosis and resemble miniature adults — typically 2-3 weeks after hatching. At this point they are roughly 5-8mm long. Wait until they are at least 10mm before introducing them to any tank with fish, as smaller juveniles are easy targets even for "safe" species.

Common Health Problems and Medication Warnings#

Most ghost shrimp health issues come down to water quality or accidental chemical exposure. Infectious disease is rare in well-maintained tanks.

Molting: Normal vs. Failed Molt#

Ghost shrimp molt every 3-4 weeks as they grow, shedding their exoskeleton and growing a new one. A freshly molted shrimp looks pale and translucent and may hide for 24-48 hours — this is normal. Leave shed exoskeletons in the tank; other shrimp eat them to recycle calcium.

A failed molt occurs when the shrimp cannot fully extract itself from the old shell. This is usually caused by insufficient minerals (GH below 5) or sudden parameter changes. The shrimp becomes stuck and typically dies. Maintaining stable GH between 5-10 dGH prevents the vast majority of molting failures.

Copper Toxicity and Invertebrate-Safe Medications#

If copper is accidentally introduced, perform an immediate 50% water change and add Seachem CupriSorb or activated carbon to the filter. Move surviving shrimp to a clean, cycled backup tank if losses have begun.

Signs of Stress and Poor Water Quality#

Watch for these red flags: shrimp clustering at the water surface (low oxygen), lethargy and refusal to forage (ammonia or nitrite exposure), cloudy or milky body color (bacterial infection or severe stress), and erratic swimming or "glass surfing" (parameter shock). Test ammonia, nitrite, nitrate, and pH immediately when you observe any of these behaviors. Small daily water changes of 10-15% are safer than one large change when correcting water quality issues.

Where to Buy Ghost Shrimp#

Sourcing matters. The difference between ghost shrimp that live two years and ghost shrimp that die within a week almost always comes down to where and how they were acquired.

LFS vs. Online: What to Look For#

Local fish stores are the best source for ghost shrimp. You can inspect the animals in person, check tank conditions, and avoid shipping stress — which is the leading cause of DOA losses with invertebrates. Big-box pet stores sell ghost shrimp cheaply, but their stock often comes from feeder-supply wholesalers with high mortality rates and poor handling practices. An independent local store that maintains clean tanks and knowledgeable staff is worth the extra trip.

Finding Ghost Shrimp at Local Fish Stores Near You#

Skip the chain-store feeder tank and buy from an independent shop that treats ghost shrimp as livestock, not live bait. A good local fish store will keep them in clean, filtered tanks and can answer questions about their source and water parameters.

Browse stores in popular shrimp-keeping regions: find a local fish store in Tennessee or Louisiana, or check out local aquatic stores like Aquarium Shoppe in Springfield, MO known for freshwater invertebrate selection. You can also browse all states or use our store finder to search by location.

Ghost Shrimp Quick-Reference Care Card#