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$10 Each (10 for $50) 1/2" - 1" juvenile giant blue Australian crayfish (Cherax Quadricarinatus). I have Various sizes of giant blue Australian blue crayfish from $5 - $35. See other listings for other sizes available. Shipping is $25 for priority mail for up to 20 crayfish. Extra shipping if ordering more than 20. If you need different delivery please contact me These are freshwater crayfish and require a tropical tank. As they mature they can take on a brilliant blue color with purple highlights. They are aggressive and territorial. They will eat slow moving and sick fish that are much smaller than them. I house them with 12" plecos and they can't bother them. I also have them in a tank with tetras, rainbow sharks, rasborras, tiger barbs, silver dollars and swords. These grow to over 18 inches in length and up to 2 1/2 lbs in weight so you need a tank that can house them. They are omnivores and will eat any kind of decaying matter. They make great cleaners in a tank cleaning up the detritous. If you want to do some research on them, their scientific name is Cherax Quadricarinatus They can handle temperatures between 40 degrees and 90 degrees. I keep them between 70 and 80. They are pretty hardy but they do better in a tank that is well established. (> 4 months old). What is interesting is that i have found that the blue color develops much more if they are exposed to deep blue light ( around 425 nm wavelength) They vary in color from light blue to deep blue and if you are using lights with more red wavelength they will develop more of a brownish blue.

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