Originally Posted by
skip
ear infections are not caused by external bacteria. they are caused by your normal bodily bacteria getting out of control due to a weakend immune system, trauma (even slight), with inflammation and congestion providing a nice growing environment. Ear Beer? kills the bacteria already in there, dries it out and alters pH thus creating an environment counter to growth. Anyway, it's not dead fish, their decaying bodies or whatever killed them.
However a fish kill-off may indicate a water-quality problem, most likely lack of dissolved oxygen. What uses up oxygen? algae. Notice an increase in algae? I suppose it could be poison from an upstream dump of toxic chemicals, but lack of oxygen in the water is the usual culprit. look at the minnows, are they hovering around the surface, gulping air? That's a sure sign of lack of oxygen in the water. I can also speculate that coming from upstream they may have lingered too long in the cave (where oxygen gets used up pretty quickly and not replaced), and died in there, then were flushed out to the basin. Perhaps higher than normal river water feeding upstream cow swept more than usual number of fish into the cave where they died before making it to the basin.
still, ear infection and dead fish are totally independent events.
skip