How can you tell if your male minnow is ready to breed?

You can tell if your male minnow is ready to breed by observing changes in its coloration, which often becomes more vibrant during the breeding season. Additionally, males may develop tubercles, small white bumps, on their bodies and fins. They may also exhibit increased activity and aggressive behavior, especially towards females. Lastly, males will begin to chase females as part of their courtship display.