se1an;2390148; said:looks like a tear mark.Bichirs can be pretty mean sometimes
clown knifes i would not keep with other bottom dwellers
this video will show you that clowns do not fight back.
http://www.youtube.com/watch?v=IppuudOvDZ4
2:00 is my point
That's a quick way to go broke on fish and lose respect in the fish community at the same time. Good job!