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Originally Posted by buster65
I have a 30 gal tank - the gobie sifts normally, but has lost significant weight over the last 2 weeks. He eats Mycin shrimp, but hasn't gained his weight back. The other fish eat the food too quickly - it rarely gets to the bottom of the tank where he is. The gobie maybe eats 2-3 shrimp per feeding. HELP!!!
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You're lucky that your goby is eating frozen food. I am assuming that this is some type of sifter like a sleeper or yellow headed goby, is this true? Do you have a
deep sand bed? How large is the tank? Did you acquire this as a juvenile, or do you have its mate if it is an adult? All of these can be stumbling blocks to successfully keeping this fish in a system.
Assuming that all these are adequately addressed, keep in mind that these are not the quick feeders that more motile and active fishes are in the open water column. These fishes will require target feeding and isolation from competition in a mixed
species tank with active, more aggressive feeders. Many have suggested that these fish will not be able to compete with more active tankmates, and for this reason, should only be housed as specimens in a species tank or as members of a tank of very low competition feeders (seahorses, firefishes, ranfordii gobies or some similar spp of small basselets, etc.) Some aquarists have success by physically separating the goby burrows from the rest of the tank temporarily by the use of a plastic divider or by using eggcrate grid during feeding, but for most folks, this is too much effort, and these poor fishes die of malnutrition.
Best to either place them as part of a system without large numbers of fishes (like a quiet DSB lagoonal system) or to build a specimen tank for these fish, as they are not really good selections for tanks with large, competitive populations of fishes.