How many eggs can a steelhead lay?

How often should I perform a fish tank water change to maintain a healthy aquatic environment for my fish? Can andacondas eat underwater? What does not contain silica? How does the concept of "dog whistle" work in communication and what are its implications in society? Why did taxonomists divide the Kingdom Monera? Does all animals move in only two ways? A substance that is vital to life in small amounts? Mixwood plains ecozone please answer those questions 1how can wildlife affect landforms 2how can landforms affect wildlife 3.how can wildlife or humans affect climate? What justification stated the rich prospered because they were more fit to survive? What are the potential causes and treatment options for a dark spot on my dog's eye? Is it safe to use zinc oxide on dogs? How do Chinese Salamanders survive predators? How long can animal abusers be sentenced to in jail? What is a Meritosha? What should I do if I notice a pink pimple-like bump on my dog? How fast could a thylacoleo run? What animals gnaw on their food? Do Iguana migrate? Is the amaurobius ferox poisonous? Why is my stray cat meowing excessively?