http://forum.aqua-fish.net/ A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en http://forum.aqua-fish.net/?topic=black-skirt-tetra_#1 Hi, my Black skirt tetra - Wawe has a problem. It all began when his left pectoral fin become red. We thought, that it is because there was not enough iodine in the water, so we put some salt into it. But that fin was smaller and smaller and around that fin showed something like a black dirt. And it showed on the tail fin too. I never saw something like that and I ablolutly don´t know what it is. Do somebody know something about it? But Wawe is still actine. The lost of the fin don´t embarrass him and he eat normally too. original post: July 10, 2007, 4:40 am MiniMe 2008-05-03