diamond prawn goby mystery

sethfloydjr

New member
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I bought a Diamond Prawn Goby about 2 months ago. He has been fine this whole time and has gotten along well with everyone else in my tank. I have a 55 with some live rock, 1 Yellow Tang, 1 Prisoner fish, 1 blue damsel, 1 pink and yellow damsel, and 1 green Chromis. Nothing special.
All of the sudden when I came home today the goby was swimming around backwards and then looping around upside down. I knew something wasnt right so I kept watching him and he finally expired.

I have no idea what it was that did him in. I did notice that as he was swimming upside down the underside of his chin was blackish green, which I would think would be from digging and such. He looked extremely thin...almost shiveled up as if he had been out of the tank and cooked on the top side of the glass under my lights....like my last one. I have since fixed the cover on my tank and there is no way he got out and then back in so I know its not that. His fins were pointing straight out and at times even kind of cocked towards his face. He looked like he was gasping and at one point he spat out a mouth full of substrate.

Could he have possibly been choking???

Any other ideas?

One thing that I also wonder is if while he were digging around and he ran into a bristle worm could that have stung him or something to make him go nuts and die like that? Ive been chasing that worm for a while and cant seem to trap him.
 
i think that because of how large your substrate is (looks like crushed coral) he could not pass it through his gills. diamond gobies are sand sifters, that's mostly what they eat is the microfauna, copepods and other stuff in your sandbed. they need sand so that this doesn't happen.
 
ahhh..crap
:(

i wondered about that since he was pretty young...and i have been thinking if gradually working in some finer sand...guess i have a good reason now

thanks
 
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