Gobies

Gobies are the largest and adaptable group of fish species that can be found in marine, freshwater and brackish waters in both tropical and temperate regions. Gobies number some 267 genera and 2,100 described species with many more to come. All but about 200 are marine; mostly tropical and subtropical reef.

The small size of most of the species and the fact they are relatively easy to keep makes them idea for a home aquarium, where some species have successfully breed. Males often guard the eggs, which maybe laid in crevices of rocks, and the young rapidly grow.

Most species live in, on, or near the bottom and are of small size. One super goby species attains a gargantuan eighteen inches, but almost all his kin are less than four inches in total length. The family contains the world's smallest fishes and vertebrate. Trimmatom nanus of the Indian Ocean females reach a mere 8-10 mm.

There are other goby species only slightly larger. Many of the gobies live in close association with invertebrates such as sponges, shrimps and sea urchins; regardless of goby size, they become the center pieces of an aquarium when maintained with them.

Due to their size Goby are bite sized candy bars to many fishes like  Triggerfish, large angelfish, basses... most anything with a big enough mouth will suck them down.

Many species of gobies are naturally short lived so its recommended to start out with young individuals.