This became a problem when the males started to attempt to mate with certain beer bottles that were just the right color.

Early sexually mature males can start their reproductive life before the rest of the male population.

During the ride, the male and female started arguing about something.

The male can start courtship even without the presence of a female.

When a female approaches the bower, the male starts to display.

If this happens, the dominant male will find a second harem and start the process over again.

At four weeks, the largest males (under two inches long) started chasing after females.

The male started to bully the female, so I removed her to another tank - better to be safe than sorry.

If the male starts to build his nest in a community tank, he will attack any fish which comes close.

When the male started to go into his routine once more, the pilot cut him off.