Sand shifting goby

Discussion in 'Marine Fish Discussions' started by zakiyya, 30 Jun 2013.

  1. zakiyya


    26 Jun 2012
    Likes Received:
    Hi guys.

    My sands hitting goby that we've had for under a year I've noticed the bottom of its mouth is turning yellow and black. What old it be.

    I will try and post pictures if can get it to stay still.

    Thanks in advance

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