Health & WellbeingI think my Zebra Danio Glowfish has TB. How do I know for sure and should I remove it from my tank to keep frofrom infecting my other fish?
Unfortunately there is no effective cure for mycobacteriosis in fish. Skimmer should be removed from the tank and the water of the main tank should changed gradually but completely over the next month. There are environmental factors that favor growth of mycobacterium which include low dissolved oxygen, low salinity, low pH, warmer water, and high organic loads (food feces and vegetable matter). Various antibiotics such as rifampin, erythromycin, streptomycin, kanamycin, doxycycline, and minocycline have been suggested as possible treatments, but a clinical cure is unlikely. I would suggest a check up at your local aquatic vet to confirm your suspicion and attempt a treatment.
Updated on August 12th, 2025
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