In article ,
(Bchbound) wrote:

Isn't feeding live bait a way of introducing bacteria etc into the
tank. Seems like the cons outway the pros? Fish can thrive on dried
food so why mess with what works? I put new fish in an isolation tank
before risking exposing my big tank to disease. Why throw live food in?
Just wondering?

Breathing near the tank is a way of introducing bacteria.

You only deed to worry about obligate pathogens. So long as the live food
doesn't come from anywhere that contains live fish, it can contain no
obligate fish pathogens. Having said that I occasionally remove midge
larvae from the Koi pond to give to my tropicals, so far without dire
effects.

Roger Sleet
Roger's Aquatic Pages http://www.sleet.plus.com