Crayfish grow up to 5 inches (12.7 centimeters) and should be kept in a tank that’s at least 30 gallons. Blue discus fish are bred in several color varieties, including plain blue and blue-turquoise ...

In the past it was often used as a staple for fussy fish like Discus, but this isn’t common now. Hard boiled egg yolks are another old standby, often used to feed fish fry and baby livebearers. The ...

However, isotonic levels in transport may well be a bit over the top for many fish, and they're not really designed to live in water of this salinity for long, so such levels aren't advisable. Surely ...

American discus thrower Sam Mattis described temperatures as high as 44 Celsius (111 Fahrenheit) at the 2021 U.S. Olympic trials in Eugene, Oregon, causing some fans, officials and athletes to ...