florida joe
Well-Known Member
Ok Steve I am having a moment of clarity so lets get serious, if by out of no where you are talking about an established tank with out any ick and no new fish added my answer is no never it just cant happen as you know I think where some people get confused is by not knowing the life cycle of ick you can buy a fish that has but one ick parasite on it its drops off in the shipping bag and somehow gets transferred into your QT or DT to start the cycle and you cant not understand how it got there if the fish looked clean or you miss that lone parasite on the fish and it goes through its life cycle and after four weeks the free swimming thorents in their infective stage attack your fish BUT after four weeks in QT with out any signs of ick you put it in your DT or you did not QT and just put it in your DT and all of a sudden your fish brakes out in ICK and you have no idea now or why im sure you already know this but I think its good to get this info out again