Are there ways to encourage aquarium fish to mate?

Question of the Day - August 13, 2008

Are there ways to encourage aquarium fish to mate?

While some fish are more likely to mate than others (some people joke that for guppies, you just add water) there are ways to encourage fish to mate. You can try increasing the water temperature slightly, increasing amount of plants, and increasing the number of females. Make sure you have at least one male and 3-4 females.