Freshwater Crayfish

Bring your tank to life with our freshwater crayfish for sale, perfect for aquarists looking to add bold, active, and low-maintenance invertebrates to their setup. Whether you're new to crayfish or a seasoned enthusiast, our collection features vibrant crayfish species like the Electric Blue Crayfish, White Crayfish, and more.

These live crayfish for aquariums are not only stunning to look at but also fascinating to watch as they explore, dig, and interact with their environment. They're ideal for species-only tanks or setups with fast-moving, non-aggressive tank mates.

You can get more info about the How to Set Up A Freshwater Crayfish Tank

At Splashy Fish Store, our Freshwater Crayfish 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, aquatic shrimp for sale, and live aquatic plants for sale.

Freshwater Crayfish Frequently Asked Questions FAQs

How many crayfish can live together?

Crayfish are territorial and often aggressive, so it’s best to keep only one crayfish per 20–30 gallons of tank space to prevent fighting. If you want to keep more than one, use a large aquarium (40+ gallons) and choose less aggressive species like those from the Cherax genus. It's crucial to provide plenty of hiding spots—at least two per crayfish—using rocks, plants, or PVC pipes, especially since they’re vulnerable after molting. Juveniles can sometimes be housed together temporarily, but as they mature, they should be separated to avoid injuries or cannibalism. Always monitor them closely and be prepared to rehome or separate if aggression occurs.

How big do freshwater crayfish get?

Freshwater crayfish typically grow to about 3 to 6 inches in length, depending on the species. Common aquarium varieties like the Electric Blue Crayfish (Procambarus alleni) usually max out around 4 to 5 inches, while some larger species like Cherax quadricarinatus (Red Claw Crayfish) can reach up to 6 inches or more. Growth rate depends on factors like water quality, diet, and tank size, and most crayfish reach full size within 6 to 12 months under proper care.

What do freshwater crayfish eat?

Freshwater crayfish are omnivorous scavengers, meaning they'll eat just about anything! In the wild, they feed on plant matter, algae, dead fish, insects, and detritus. In an aquarium, a balanced diet includes sinking pellets or wafers, blanched vegetables like zucchini, spinach, or peas, and occasional protein sources such as bloodworms, shrimp, or fish flakes. They’ll also snack on leftover fish food and help keep the tank clean. For healthy growth, especially during molting, you can supplement their diet with calcium-rich foods or cuttlebone to support shell development.