Silver Surfer;824828 wrote: Ok if some fish can build up immunities to ich, in theory if a new fish was introduced to the system slowly couldn't you possibly build him up to resist outbreak.
Kind of like the flue shot?
More like a trial by fire!
Ich exists in the oceans...it has for longer than humans have walked the earth. Yet it hasn't eradicated all of the fishes in the ocean. Why?
The answer is simple...food source. The function of a parasite is NOT to kill the host...it is to keep it alive. If a parasite's function was to kill everything it came into contact with then there would be nothing to keep the parasite itself alive. In fact, if parasites killed their hosts the earth would be non existent.
Fishes in the ocean have a steadier, healthier environment. Therefore, their ability to fight off ich (while still in the ocean) is greatly increased.
Now to answer your question. A healthy fish is going to resist an outbreak on its own.
A new fish is not Healthy. It is stressed. It has been removed from what it called home, put into a bag, shaken to all hell and back, and then dropped into a new strange place. EVERYTHING about it's new environment is different. Its mental and physical states are compromised.
With its immune system down the parasite continues on its path as normal. The changing variable being its hosts well being. This allows the parasite to increase its population vs the otherwise healthy specimen. It makes the fish sick...and usually something else kills the fish. Think AIDS...AIDS patients usually die from pneumonia, colds, the flu, etc. The compromised immune system allows for secondary infections, and eventually the fish succumbs.
This is as I see it. Again, there is enough info to support my theory as well as refute it.
Back to your earlier question...Read host susceptibility on this article. http://www.reefkeeping.com/issues/2003-08/sp/index.php">http://www.reefkeeping.com/issues/2003-08/sp/index.php</a>
The author has seen less than one handful of all regal tangs he's come into contact with to be free of ich. How is it that they all have managed to survive even long enough for him to witness this if ich is not normal?
Bruce sorry for hijacking your thread. Were you able to quarantine? If so 35-40 days is sufficient as you were informed earlier.