Fish disease case nr. 261 Tetra Moenkhausia sanctaefilomenae with many tubercles, fish tuberculosis

[@sasfishadventures9729]

Great video🎉 I recently got a bunch of new tetra fish and am having multiple deaths a day in my fully cycled tank. What do you think it's most likely to be? They have no real symptoms they just kinda stop swimming and kinda floating around then die. Lost 20+ fish

[@GeraldBassleer]

When quick mortality....usually bad water conditions, poisoning, bacterial infection....