Goby I.d.

Rex740

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Today I went to the pet store and I saw mixed in with the ghost shrimp two fish. They stood on the bottom and seemed like gobies, but which kind? They were one inch and white, with three dorsal fins. The petstore manager said they were a type of goby and he was charging $3.99 foir them...
 
Thats not it. They were skinny, long, and layed on the bottom.
 
They surely didn't have three dorsal fins: gobies have just two, one spiny, one soft. It may be that one of the fins has been damaged, in which case a course of Finrot medication wouldn't be out of order.

A lot of the novelty loach-like gobies traded today are species of Stiphodon or at least members of the goby subfamily Sicydiinae. These are mountain stream fish with marine larvae. They all need not-too-warm, fast-flowing, very clean water with lots of oxygen. Most are aufwuchs feeders and don't compete well with catfish, loaches, etc. Stiphodon are primarily freshwater fish though some species also occur in brackish water.

Otherwise, Naomi Delventhal, who wrote the goby chapter for my book, gives this general advice for "mystery gobies" -- keep them in slightly brackish water up to SG 1.005; this won't harm freshwater species, and will keep brackish water species healthy. She also makes the point that because gobies are almost all small, there's little risk of coming home with a potential monster. Social behaviour is invariably that they are territorial but not otherwise aggressive.

Cheers, Neale

Today I went to the pet store and I saw mixed in with the ghost shrimp two fish. They stood on the bottom and seemed like gobies, but which kind? They were one inch and white, with three dorsal fins. The petstore manager said they were a type of goby and he was charging $3.99 foir them...
 

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