Hey, i was just wondering if anyone could help me..over the last few weeks i have suddenly had several fish die 
i tihnk it started after i added some cardinal tetras (one died on the first night), a few days later 2 of my guppies started acting strangely, they would not eat, they hid in the dark and barely moved,after a couple of days tey both died A week later the same happened to one of my gouramis (i noticed he was very very thin). The guppies didnt seem thin, but two of them became a funny shape (sort of bent). I put in a medicine for internal parasites after someone told me that's what they thought was the best treatment, but it didn't seem to work..I've tested my water and all seems to be fine..does anyone have any suggestions as to what i should do next or why my fish died? thanks very much!
i tihnk it started after i added some cardinal tetras (one died on the first night), a few days later 2 of my guppies started acting strangely, they would not eat, they hid in the dark and barely moved,after a couple of days tey both died A week later the same happened to one of my gouramis (i noticed he was very very thin). The guppies didnt seem thin, but two of them became a funny shape (sort of bent). I put in a medicine for internal parasites after someone told me that's what they thought was the best treatment, but it didn't seem to work..I've tested my water and all seems to be fine..does anyone have any suggestions as to what i should do next or why my fish died? thanks very much!
/www.4qd.org/Aqua/disease/tb.html
