Electric Blue Crayfish
Procambarus alleni
What you need to keep a Electric Blue Crayfish
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pH
7–8
Temperature
21–24 °C
Where to buy
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Overview
What to know before you buy.
This crayfish displays an unbelievable, brilliant blue color that is entirely natural. They are very active and known for their bold personalities, often rearranging decorations in the tank. They are opportunistic omnivores that will eat plants and may try to catch slow fish, so careful selection of tank mates is required.
Key traits
Care guide
Keeping Electric Blue Crayfish healthy in a South African setup.
Tank setup
Add it only to a fully cycled, mature tank: invertebrates tolerate ammonia and nitrite far worse than fish. Use a tight lid and give plenty of caves: crabs and crayfish escape and need a safe spot to moult.
Water parameters
Keep pH 7–8 and 21–24°C. Never use copper: most fish medications and some plant fertilisers contain it and it kills invertebrates. Drip-acclimate over at least an hour.
Feeding
Omnivore. Remove uneaten food within a few hours so it doesn't foul the water.
Behaviour
It hides after moulting while the new shell hardens: leave the old shell in the tank, it eats it back for minerals.
Tankmates
Electric Blue Crayfish can catch slow or sleeping fish and will eat smaller invertebrates. Keep it with fast, robust fish.
Breeding
Electric Blue Crayfish breeds readily in a stable, predator-free tank.
Community photos
From hobbyists across SA.