I have a red finned cigar shark (aka mad barb) and the lower edge of his tail fin is kind of erroding away and black around it. I can't find anything that has this as a symptom. Does anyone have any ideas as to what this might could be?



JAY ROB;4118915; said:Thanks for the help! hopefully I can get the fish back in tip top shape so I can put him in my new 75 gallon tank. Also, I tested for ammonia and it was at 0ppm and I just tested the ph and its at 6.6 Should I try raising the ph level?

