Freshwater Crab
Freshwater Crabs are unique, small invertebrates that bring color, personality, and fascinating behavior to aquarium setups. While some species like the Thai Micro Crab are fully aquatic, most, including the popular Vampire Crab and Red Apple Crab, are semi-aquatic and require access to both land and water. These crabs thrive in paludarium-style tanks with shallow water zones, plenty of hiding spots, and secure lids to prevent escapes.
They are omnivorous scavengers, feeding on sinking pellets, blanched vegetables, algae wafers, and protein-rich treats like bloodworms or brine shrimp. Crabs are generally peaceful with tank mates that don’t invade their space, but due to their territorial nature, they’re best kept in species-only tanks or with fast, mid-to-top dwelling fish. Freshwater crabs molt regularly as they grow and need safe shelters during this vulnerable phase. With proper care, these crabs can live 1.5 to 3 years, offering a bold and interactive addition to any aquascape.
Depending on the species, freshwater crabs may spend more time underwater or require access to land. Understanding their needs is key to keeping them healthy and active.
You can get more info about the How to Keep and Care for Freshwater Crabs in Home Aquarium
At Splashy Fish Store, our Freshwater Crab for sale are carefully hand-selected and quarantined before shipping to ensure the highest quality when the order comes to our customers. Visit us to buy these freshwater shrimp online or at our aquarium store in Virginia for more other Neocaridina shrimp for sale, Caridina shrimp for sale, freshwater fish for sale, freshwater lobster for sale, and live aquatic plants for sale.
Freshwater Crab Frequently Asked Questions FAQs
What do Freshwater Crabs eat?
Freshwater crabs are omnivores. They eat sinking pellets, algae wafers, blanched vegetables (like zucchini and spinach), and occasional protein-rich treats such as bloodworms or shrimp pieces.
How to care for Freshwater Crab?
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Tank: 10+ gallons with both water and land areas for semi-aquatic species. Use a tight lid—crabs can escape.
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Water: 72–78°F, pH 6.5–7.8, clean with weekly water changes. Use a gentle filter.
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Feeding: Omnivores—offer sinking pellets, veggies, and protein like bloodworms. Feed once daily, preferably at night.
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Tank Mates: Best in species-only tanks. If mixed, choose fast fish and provide lots of hiding spots.
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Molting: Crabs shed their shells to grow. Provide cover and don’t remove molts—they may eat them for calcium.
How big do Freshwater Crabs get?
Most freshwater crabs reach about 1–2 inches, though some larger species like the Red Apple Crab can grow up to 4 inches. Always check the expected adult size before adding them to your tank.
Testimonials
Let customers speak for us
Received 3 super healthy and active snails. They gave great instructions on how to set them up in the aquarium for success! Two weeks later they are thriving with other snails and fish!
Splashy Fish has a large variety of fish and plants, came home with a bunch of very nice Cardinal Tetras which are doing great in my planted tank.
Splashy Fish has a large variety of fish and plants, came home with a bunch of very nice Corydoras Julii which are doing great in my planted tank.
Went into the Splashy store and left with more than I intended! It was incredibly stocked with THE most beautiful healthy dumbo guppies I’ve seen in the area. Got a few along with a bunch of neon green tetras that have all settled wonderfully into my tank! The shop associates were all so knowledgable and kind. Shout out to Allan who helped us out! He really knew his stuff! I’ve checked out quite a few local LFSes and this is the best by far. Already planning my next haul!
GOOD CUSTOMER SERVICES ,ATTENTIVE AND INFORMATIVE, GOOD VARIETY OF FISH AND PLANTS
The service was amazing when providing the plants to me and they look super nice! Thank you :)
10/10 - very satisfied with the health of my new betta and the level of service received from staff. Thank you Splashy Fish team!
Local pickup was very easy. The store is very clean, with lots of healthy fish and plants. Friendly staff. Has become my go to LFS.
My chilis arrived in excellent condition and have already begun to color up! Great packaging and always good quality disease free fish.
I would highly recommend the daphnia culture that was provided as an alternative! I had been moving away from Omega One on the saltwater side of my endeavors, but wanted to give this a shot. Unfortunately, the pack I received is to expire this April. Still 5/5 for the customer service and the live food source. During this trip, I was also able to select an amazing betta fish that I am to pick up next week! Thank you Victoria and Splashy Fish team, I look forward to more visits to this shop:)
Very helpful, knowledgeable, friendly, and patient people. Clean, easy to get around shop with lots of fish and fish-related items to select from. Will definitely shop here again!!!
