Yabby

About

The yabby (Cherax destructor) is one of Australia's most widespread freshwater crayfish, found naturally across a huge swathe of the Murray-Darling basin and beyond, where it thrives in everything from clear rivers to muddy farm dams. That scientific name is no joke. Yabbies are notorious diggers and burrowers, capable of remodeling a planted tank overnight and even excavating under rocks and decorations that you thought were firmly placed. They're also remarkably tough, tolerating a wide range of water conditions that would stress more delicate invertebrates, which makes them a genuinely forgiving choice for keepers new to crayfish. Coloration varies quite a bit. Wild-caught individuals tend toward olive-brown or bluish tones, while selectively bred aquarium strains can show vivid blue, white, or even yellow hues. Temperament-wise, yabbies are opportunistic and should be considered a threat to fish slow enough to be caught, as well as to any soft-bodied invertebrates sharing the tank. They do best with plenty of hiding spots, especially around molting time when they're temporarily vulnerable. A single specimen can make a genuinely engaging display animal. They're curious, interactive, and not shy about coming to the front of the tank when they associate you with food.