
Black goby
Gobius niger
Gobiidae, Gobiinae

Gobius niger
Gobiidae, Gobiinae
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Lives wild in Albania, Algeria, Belgium, Bosnia & Herzegovina, Bulgaria, Croatia, Cyprus, Denmark, and 36 more countries.
Found in estuaries, lagoons and inshore waters over sand or mud, in seagrass or on algae. Occasionally recorded in freshwater, but there are no documented records of actual occurrence in European freshwaters. Feed on crustaceans (larger amphipods, isopods, shrimps, mysids, small crabs), bivalves, gastropods, polychaetes, chironomid larvae, sometimes small fish.
From the store to the tank: how to get the fish used to your water, why you should add only a few at a time, and what to watch for in the first few days.
Why new fish should live in a tank of their own for a few weeks before they move in, what you need, and what to look for.
What is different in a saltwater aquarium: salt, refractometer, live rock and corals. An introduction for anyone thinking of giving it a try.