Tomato Vampire Crab
Tomato Vampire Crab (Geosesarma sp. “Tomato”)
A rare red vampire crab for tropical paludariums, planted terrariums, and bioactive display setups.
Tomato Vampire Crab is a striking red Geosesarma crab known for its vivid tomato-red body colour, compact size, and jewel-like appearance. Also searched as Red Tomato Vampire Crab, Red Ruby Vampire Crab, Blood Vampire Crab, or Geosesarma sp. “Tomato”, this crab is one of the most eye-catching colour forms in the vampire crab hobby.
This is not a fully aquatic aquarium crab. Tomato Vampire Crabs are best kept in a humid tropical paludarium or planted terrarium with mostly land, a shallow freshwater area, moss, leaf litter, hiding places, and stable humidity.
For aquarists who want something different from fish and shrimp, Tomato Vampire Crabs can become a stunning centerpiece in a small planted paludarium. Their colour, behavior, and ability to live in a bioactive-style setup make them one of the most interesting freshwater invertebrates available.
Why this crab stands out
- Rare red Geosesarma vampire crab
- Bright tomato-red body colour with strong display value
- Excellent for tropical paludariums and planted terrariums
- Unique semi-terrestrial behavior unlike aquarium shrimp or snails
- Great choice for bioactive-style displays with moss, plants, and leaf litter
- Small size makes it suitable for dedicated desktop paludariums
- One of the most visually striking vampire crab colour forms
Best for
- Paludarium keepers
- Bioactive terrarium hobbyists
- Rare invertebrate collectors
- Customers looking for a red vampire crab in Canada
- Planted terrarium and moss tank displays
- Aquarists who want something beyond fish, shrimp, and snails
Topick Aquarium Insight
The biggest mistake with vampire crabs is treating them like aquarium animals. Tomato Vampire Crabs need land first, water second. A standard fish tank filled with water is not suitable for this species.
Think of them as tiny tropical forest-floor crabs that need access to shallow water, not as crabs that live underwater full time. A good setup should include moist substrate, moss, leaf litter, cork bark, wood, rocks, plants, and many hiding places.
They are beautiful, but they are still crabs. They can be territorial, especially in tight spaces or when multiple males compete for the same shelter. A well-designed enclosure with many hides and visual barriers is more important than simply buying more crabs.
Paludarium Setup
Tomato Vampire Crabs should be kept in a humid paludarium or planted terrarium with a shallow freshwater section. The enclosure should provide more land than water.
- Recommended setup: mostly land with a shallow water area
- Land area: approximately 70–80% of the enclosure
- Water area: shallow, easy to enter and exit
- Moist substrate such as coco fiber, terrarium soil, moss, and leaf litter
- Multiple hides using cork bark, wood, rocks, caves, and plants
- High humidity and good ventilation balance
- Tight-fitting lid required, as crabs can climb and escape
The water section should be dechlorinated freshwater and not too deep. Always provide ramps, stones, wood, or moss so the crabs can leave the water easily.
Care Profile
- Scientific / Trade Name: Geosesarma sp. “Tomato”
- Common Names: Tomato Vampire Crab, Red Tomato Vampire Crab, Red Ruby Vampire Crab
- Temperature: 22–28°C, with 24–26°C ideal for many setups
- Humidity: High humidity recommended, generally around 75–90%
- Water Type: Dechlorinated freshwater, shallow access
- Adult Size: small crab, approximately 2–3 cm carapace size
- Temperament: Territorial, best in species-focused setups
- Diet: Omnivore
- Care Level: Intermediate
Tomato Vampire Crabs are not difficult when the enclosure is correct, but they are not beginner aquarium animals. The setup matters more than chasing exact water parameters.
Group Size & Social Behavior
Tomato Vampire Crabs can be kept singly, as a pair, or in a small group if the enclosure has enough space and hiding areas. They are territorial and need room to establish their own shelters.
- Single crab: easiest option for small display setups
- Pair: possible if sexed and housed with enough cover
- Trio: often best as 1 male with 2 females in a larger setup
- Multiple males: only recommended in larger, complex enclosures with many hides
Do not overcrowd them. More crabs require more land area, more hides, and more visual separation.
Do Not Mix Different Vampire Crab Types
We recommend keeping Tomato Vampire Crabs in a species-focused enclosure. Mixing different Geosesarma colour forms or different crab species can cause territorial stress, fighting, injury, or unwanted hybridization.
If your goal is to maintain the Tomato line and enjoy natural group behavior, keep them separate from other vampire crab types.
Feeding
Tomato Vampire Crabs are omnivores and should be offered a varied diet. They will forage through moss, leaf litter, and surfaces, but they should still be fed directly.
- High-quality crab food
- Shrimp pellets
- Fish flakes or micro pellets
- Frozen bloodworms
- Frozen brine shrimp
- Dried insects or small insect-based foods
- Blanched vegetables in moderation
- Leaf litter and natural biofilm
Calcium access is important for healthy molting. Cuttlebone, mineral stones, crushed coral in a controlled amount, or calcium-rich foods can help support shell development.
Molting
Like shrimp and crayfish, vampire crabs molt as they grow. During molting, they are vulnerable and need privacy, moisture, and stable conditions.
- Provide many hiding places
- Keep humidity stable
- Avoid sudden enclosure changes
- Do not disturb hiding crabs unnecessarily
- Leave molts in the enclosure temporarily, as crabs may consume them for minerals
Poor humidity, lack of minerals, stress, or unstable conditions can increase molting risk.
Tank Mates
Tomato Vampire Crabs are best kept in a dedicated paludarium. They are not recommended for normal fish tanks, shrimp tanks, or community aquariums.
- Best kept with their own kind in a properly designed enclosure
- Springtails and isopods can work well in bioactive setups
- Small aquatic animals may be eaten if caught
- Fish may stress or injure crabs in small water sections
- Do not keep with puffers, crayfish, aggressive fish, or other crab species
A vampire crab paludarium should be designed around the crabs first, not around fish.
Breeding
In a stable, well-designed enclosure, Geosesarma vampire crabs may breed. Females carry eggs under the abdomen, and the young can emerge as tiny fully formed crabs instead of free-swimming larvae.
Baby crabs are very small and need dense cover, leaf litter, moss, and micro-food. Cannibalism can happen, especially if the enclosure is overcrowded or lacks hiding places.
If breeding is your goal, a species-only enclosure with stable humidity, many hides, and a calm group structure is strongly recommended.
Canada-Wide Live Invertebrate Shipping
Tomato Vampire Crab is available from Topick Aquarium in Canada when in stock. Local pickup is available in Markham, Ontario, and Canada-wide live invertebrate shipping may be available depending on weather, route, and livestock condition.
Important Note
Tomato Vampire Crab is not suitable for a fully aquatic aquarium. It must have access to moist land, shallow freshwater, hiding places, and high humidity.
Please prepare a proper paludarium before purchase. A fish tank with only water, bare gravel, and no land area is not appropriate for this crab.
FAQ
Is Tomato Vampire Crab fully aquatic?
No. Tomato Vampire Crab is semi-terrestrial and needs a paludarium with mostly land and a shallow freshwater area. It should not be kept in a fully aquatic fish tank.
What is the scientific name?
This crab is usually sold as Geosesarma sp. “Tomato”. Because many vampire crab colour forms are trade names, we recommend treating it as a Geosesarma species rather than forcing an uncertain species name.
How much land does it need?
A mostly-land setup is best. Around 70–80% land with a shallow water area works well for many vampire crab paludariums.
Can Tomato Vampire Crabs live with fish?
We do not recommend keeping them in normal fish tanks. They are best in a dedicated paludarium. Small fish, shrimp, or fry may be eaten if caught, and fish may stress the crabs.
Can I mix Tomato Vampire Crabs with other vampire crab colours?
We do not recommend it. Different Geosesarma types may fight, stress each other, or hybridize. A species-focused setup is better.
What do Tomato Vampire Crabs eat?
They are omnivores. Offer crab food, shrimp pellets, fish flakes, frozen bloodworms, brine shrimp, insect-based foods, leaf litter, and small amounts of vegetables.
Do they need a heater?
A heater or controlled room temperature may be needed to keep the enclosure stable around tropical temperatures. Air temperature matters as much as water temperature.
Do they need high humidity?
Yes. Stable humidity is important for activity, comfort, and molting. Moss, moist substrate, plants, and a covered enclosure help maintain humidity.
Can Tomato Vampire Crabs breed in freshwater?
Yes, Geosesarma vampire crabs can reproduce without a saltwater larval stage in proper conditions. Females carry eggs and the young can emerge as tiny fully formed crabs.
Are Tomato Vampire Crabs beginner-friendly?
They are manageable once the enclosure is correct, but they are better for hobbyists willing to set up a proper paludarium rather than a standard aquarium.