Paul
Again it feels like you use the word immune and healthy as the same thing and interchangeable.
Do you think
A - Introducing known pathogens to tanks is ideal to promote overall true adapative immunity to your fish. And that is the main reason your tank is healthier. If you don't do this your fish can't be as healthy/immune as possible.
Or
B - Your tank has an overall superior health from all the little nuances you do. I'd argue nutrition. Because of that superior overall health you simply don't worry about adding any pathogens. Which is what you refer to as immune.
The end result is the same but fundamentally very different views.
My view with my known ich carrier added to my tank was that in the grand scheme of pathogens of fish I'd say Ich is lower in severity. So a calculated risk of seeing a fish torn up from fighting and a few spots of Ich isn't too scary. I saw it chow down at the store on flakes so took a chance that all my other healthy fish would be able to fight off a low pathogen burden from this obvious damaged fish. They eat a varied diet. Time will tell if that works...yes I understand it could of carried other pathogens and some will call me an idiot. I won't do this again for at least 6 months or a year. Not on a regular basis. But that fish was not added to purposefully boast the adaptive immunity of my other fish.
Again it feels like you use the word immune and healthy as the same thing and interchangeable.
Do you think
A - Introducing known pathogens to tanks is ideal to promote overall true adapative immunity to your fish. And that is the main reason your tank is healthier. If you don't do this your fish can't be as healthy/immune as possible.
Or
B - Your tank has an overall superior health from all the little nuances you do. I'd argue nutrition. Because of that superior overall health you simply don't worry about adding any pathogens. Which is what you refer to as immune.
The end result is the same but fundamentally very different views.
My view with my known ich carrier added to my tank was that in the grand scheme of pathogens of fish I'd say Ich is lower in severity. So a calculated risk of seeing a fish torn up from fighting and a few spots of Ich isn't too scary. I saw it chow down at the store on flakes so took a chance that all my other healthy fish would be able to fight off a low pathogen burden from this obvious damaged fish. They eat a varied diet. Time will tell if that works...yes I understand it could of carried other pathogens and some will call me an idiot. I won't do this again for at least 6 months or a year. Not on a regular basis. But that fish was not added to purposefully boast the adaptive immunity of my other fish.