My Goby Has A Massice Eye

[STEWARDSONS]

got a knight goby yesterday and noticed today one of his eyes has swollen up massive and is a bit gunky.

any ideas what it could be?

nitrate is 0, ammonia 0.

here is a photo



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[Davo86]

looks like it has pop-eye a symptom of a number of conditions, in this case possibly a bacterial infection

something like myxazin should help to clear it up