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I have a pair of rhinogobius that has layed eggs twice now and am trying to figure out what species it is. I've probably sat on Google for 5 hours total trying to find something that I can say is my fish but haven't found anything. Wandering if anyone had an idea.
Yes does look similar but the blue mouth throws me off a bit. Mine has a red highlight around his lips and bright red spotting on his cheeks. It's possible that is it the breannus and just a bit different looking but still throws me off.