Most homemade dividers are made from two materials—plastic canvas or egg crates—that are secured to the tank and anchored at the bottom. Make your own fish tank dividers to save money and customize how you divide your tank.

To prevent them from hurting each other, an aquarist can provide private spaces by partitioning one aquarium into several different sections using fish tank dividers. Dividers can be used to separate pairs of fish as well. The Ram cichlid can exist in groups containing multiple amounts of both males and females.