A filter as well as a steady supply of oxygen are as important in breeding and rearing aquariums as in community tanks.
Hobbyists who rejoice over their first accidental success with breeding live bearers such as toothed carp, rainbow fish, or some other relatively undemanding species are still not experienced breeders.
Here are some methods that have been proven useful with some fish species.
Fish can increase their reproductive success by exploiting the time and energy of other individuals or species for rearing their young and use the energy thus saved to produce more offspring.
In the aquarium, fish pursue the same propagation strategies as in the wild.