Regular Member auratus Posted July 21, 2005 Regular Member Share Posted July 21, 2005 Hello fellow fishkeepers, I have a 29 gallon tank with 2 medium goldifish. Tha tank runs on a canister filter. There has been no new additions to the tank in the last 5 months. Weekly water changes of 30%, water is treated with StressCoat and is temperature matched. pH = 7.6 ammonia = 0 nitrite = 0 nitrates = 20-30 ppm My oranda recently developed a few brown spots on its tail. The last few days I observed a few more black streaks on its tail, pelvic and anal fins. These streaks are mostly on the leading edge of the fins except on the tail. I tried to look up such symptoms, and see most people attribute this to chemical burns, most of the time ammonia. However I am pretty certain ammonia level is not a problem in my tank. Are there any other possibilities here, such as other chemicals, bacteria, or even parasites? Or can it be physical injury? I am raising my salinity level to 0.3% as a precaution right now. I'd appreciate any suggestions. Many thanks. Auratus Link to comment Share on other sites More sharing options...
Regular Member Florissa Posted July 21, 2005 Regular Member Share Posted July 21, 2005 I guess it could be injury, but usually it would look like just tattered fins and such. I would have said right off the bat that it was ammonia burn. I would do a couple more water changes (say 20% every other day for 2 days) and then wait a couple days to see if it clears up on it's own. If the fish is eating and being active I would do this before just throwing in some medication. Good luck. Link to comment Share on other sites More sharing options...
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