Setiawan Posted March 16 Share Posted March 16 Why do Neons sometimes have Adipose fins and sometimes they don't? I just know it until this day 1 Link to comment Share on other sites More sharing options...
Biotope Biologist Posted March 16 Share Posted March 16 All tetra have adipose fins. It is a distinguishing feature used in the field for marine and freshwater fish alike. Although we still don’t know what it was used for, as it appears to be vestigial in most fish. 2 Link to comment Share on other sites More sharing options...
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