Gobies

Gobies are found in all the oceans – so naturally the known gobies in our marine come in our aquarium from the tropical waters. Gobies usually have a long body with a big jaw. The ventral fins have grown together into a suction disc with which the fishes can hold on to the rocks. There are very few gobies who live in the fresh water. The wonderful Schwert gobies of Nemateleotris species belong to this. Gobies are specially suitable to be kept in the marine aquarium due to their small size. Often they also fulfill a special purpose: Some of them keep digging the sand to ensure that it always appears white. Others live together with symbiotic partners which is really spectacular to watch.




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Symbiotic gobies and partner gobies

"Most interesting: Symbiotic gobies with partner crabs!"

Coral gobies

Coral gobies (Gobiodon) on the other hand live as territorial creatures in the hard corals. They defend the corals against attackers and also use this for spawning. So a small piece of coral is gnawed off and the eggs are laid here.

Partnership

Specially popular and interesting to watch are the cohabitation between the invertebrates. The guardian gobies live together with a partner-pistol shrimp (Alpheus). So the pistol shrimp builds passageways (upto 1m) und piles up the sand outside. The goby guards the entrance of the hole and communicates with the crabs. In case of danger it takes protection in the passageways and feeds on microorganisms which gets out with the sand. This partnership is one of the most interesting things to be looked at: Gobies with partner crabs are definitely an eye-catcher in the nano-aquarium.

Feeding the gobies

Regarding feed, gobies are usually undemanding and can be fed with common food varieties. Artemia, Mysis, Goldpods and different granulated food are gladly accepted. Often the gobies are also fed the naturally existing zooplankton in the aquarium.

Useful gobies

Gobies can be very useful in the aquarium. The goby Amblygobius phalaena for example tirelessly dredges through the sand and thus ensures that this beautiful sand remains white. Due to the continuous movement it is a good precaution against Cyano bacteris and plagues on the aquarium gravel and can be used in the existing plagues.

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