Discus and Friends Fish Tank still awaits,  Any Live Fish in here now better duck and dive now as this tank is invaded! These northern crayfish are considered an aquatic invasive species of concern. Historically, they've been found in between Wainwright and Ryley in the Beaver River watershed south of Edmonton, but today, they're all over the province, including in Calgary and the nearby community ponds. They seemed to be the only thing I could catch out fishing. Just be sure to reel slowly & NEVER try setting the hook because they don't bite it, but they will fly at you while clamped on the bait, So if you have ever seen Alien just don't jerk, be light! Please Don't put them back in the water & as for these they are jailed now for life.