Violet goby "Columnaris" and fin rot; which are bacterial infections that spread across the skin and fins of the fish. They are usually treated with antibacterial or antibiotic medications. Violet goby The violet goby ("Gobioides broussonnetii") is a species of goby native to marine, fresh and brackish waters near the Atlantic coast of North and South America from South Carolina in the United States of America, to northern Brazil. It prefers bays, estuaries and river mouths with muddy substrates. It is often marketed as the dragon goby or dragon fish. The Violet goby has a long, slender, eel-like body. Its dorsal and
Orangespotted goby depth. The goby and its host shrimps interact closely and the goby is dependent on its hosts' burrow for cover. The goby acts as a sentinel, watching for danger from the entrance of the burrow. The diet of the orangespotted goby consists mainly of small gastropods, decapods, ostracods and isopods. Orangespotted goby The orangespotted goby (Nes longus) is a species of goby native to the tropical Atlantic coast from Bermuda and southern Florida through the Caribbean Sea and Gulf of Mexico south to the Caribbean coasts of Venezuala and Colombia, where it prefers silty bottoms around reefs. It is a