I would like to clarify regarding a method used to perform LC50 to infect fish by a particular bacteria strain. I prepared an overnight bacteria culture, collect the pellet from overnight culture and prepared 10^8 concentration. I determine the concentration using OD reading at 625nm. And then I further diluted to the desired concentration and infected the fish withe the bacteria. And I observed for mortality for 96 hours. Is this method acceptable? Kindly advice.

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