Well think how easily ICH would spread in a large tank population. I mean there are hosts galore for the little parasites.
I bet fish hacheries for aquarium fish are pretty nasty and not as clean or concerned about the fishes well being, this would lead to higher stress in the fish and lower immune systems.
You must also account for wild type fish that are caught and bred. New source of ICH.
Additionally without ICH how could anyone sell all that ICH medicine...that crap is expensive.
I have noticed some LFS really take the time with new shipments to quarentine the tank and I've rarely had ich from trusted sources. It's always when I break down and buy some **** fish from petsmart that my tank gets ich.
I bet fish hacheries for aquarium fish are pretty nasty and not as clean or concerned about the fishes well being, this would lead to higher stress in the fish and lower immune systems.
You must also account for wild type fish that are caught and bred. New source of ICH.
Additionally without ICH how could anyone sell all that ICH medicine...that crap is expensive.
I have noticed some LFS really take the time with new shipments to quarentine the tank and I've rarely had ich from trusted sources. It's always when I break down and buy some **** fish from petsmart that my tank gets ich.