watchman goby

paul692

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i have 1 of these in my 75 gal FOWLR i also have a 3inch deep sand bed i love the way the goby sifts the sand i also feed him brine shrimp which he eats readily. can i put 2 more watchman goby in there with out a problem? my bioload is this 6 snails 1- six line wrasse and a med size powder blue tang
 
I wouldn't he needs a lot of pods to eat. Most likely you don't have enough rock in a 75G to support one, much less any more.
 
What kind of watchman? Usually they don't 'sift', they dig a burrow but that's about it.

I've seen 2 yellow watchmen pair up, not sure I'd try 3. Having said that if you have a sifter it might be a sleeper goby or some other specie. Please post a picture so we can be sure before we offer advice.

Jenn
 
Diamond Goby is a sleeper.

They are somewhat similar their body types are quite different if you look. The watchmen have two pectoral fins that they rest on. Like this:

yellow-watchman-goby.jpg
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The sleepers don't rest on their fins like that, typically, and they have a slightly different body shape. Like this:

DiamondWatchman.jpg
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The biggest difference is their behavior. Sleeper gobies sift actively, for a good part of the day. Watchmen tend to just hang out in their hidey hole, and occasionally they'll pair with a pistol shrimp.

Jenn
 
Huh I guess I never thought about it that way.

Jenn you should send this to LiveAquaria then!

Edit: http://www.liveaquaria.com/product/prod_display.cfm?c=15+2971+220&pcatid=220

Edit: I have a diamond goby and a randalls goby. So i guess my watchmen watches my sleeper! Sorry for the bad joke!
 
it is the one with the orange spots is the one i have he sifts sand thru his gills and burrows holes in it .he almost toppled a rock over. he darts back and forth sifting sand in various areas of the tank.thanks
 
That's why I don't like common names. Scientific names are always the same.

I'd call that a misnomer. The Diamond Goby is more like the Goldenhead in its behavior: http://www.liveaquaria.com/product/prod_display.cfm?c=15+31+213&pcatid=213">http://www.liveaquaria.com/product/prod_display.cfm?c=15+31+213&pcatid=213</a> They refer to it as a sleeper.

Not sure why they're called sleepers, they are more like shovellers.

Jenn
 
Interesting read as my YWG has sifted sand from day one. Not huge amounts but she will actively take a bite and sift it through the gills on a regular basis.
 
i bought it at nemo thats what they told me it was unless i misunderstood them
 
If you have a yellow watchman that sifts constantly, that's a bit unusual. They do burrow, but their 'sifting' is usually limited to the burrow area.

Sleeper gobies sift all over the place. Some will build big piles of sand, and some will pick up every empty shell and bit of rubble and make a pile. We had one once that kept picking up the live snails and hermits, along with the empties, and piling them up. Every time a hermit tried to get away, he'd pick it back up and stick it back on the pile. Poor hermits :)

The watchmen and shrimp gobies (ie the Randall's) tend to pair up with pistol shrimp. I've not seen them pair up with sleepers (although I'm sure it's possible and somebody has probably had it happen). The pistol shrimp is blind, and the "watchman" is the eyes for both of them. Usually the shrimp keeps one of its antennae touching the goby most of the time, and if the goby spots danger, both it and the pistol dart into the burrow. In exchange for the lookout, the shrimp builds and fastidiously maintains the burrow. They're like little bulldozers, and the seem to work 24/7. They're fun to watch.

Jenn
 
Jacob, that's a pretty spiffy looking goby in your avatar. Looks like a sleeper too but I can't tell what kind...
 
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