Hello my black skirt tetra suddenly have this white small thing under the mouth. What is this? It eats and swim fine. I have put in melafix in it just to be safe it is fungus or something. I'm just curious if its anything to worry about? I know my water is cloudy it always have been. Can never get it clear. I do water changes every 2 -3 weeks. And it is more cloudy because I put medication and cloudy water solution in it. Everything is fine ammonia is fine nitrates fine. Temp fine at 80.
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