The Muskie (Muskellunge)
Size: Muskies can range anywhere from 20-50 inches, meaning they require a tank that is roughly 18'x9'x3' or 3500 gallons for a large specimen (rule of thumb, 4 times the length of the fish should be the tanks length and the width should be twice the length of the fish)
Tank Setup: The tank should be very large (as stated in the size section) and have a lot of hiding spots (vegetation, drift wood, rocks, etc.) for it to ambush prey and it may require a chiller (depending on the temperature of where the tank is)
Diet: Muskies are ambush predators, feeding on fish, crayfish, shrimp, frogs, mice, birds, and just about any other meaty animal that it can get a hold of
Water Parameters: Muskies are by no means delicate fish, but ideally the nitrates should be anywhere from 0-20 ppm, with nitrite and ammonia at 0 ppm, the temperature should be in the mid 50s to low 60s
Tankmates: Tankmates would be anything that is too big to fit in it's mouth and that can handle lower temperatures, though it's recommended to keep them alone.