Originally Posted by
Beth
Obviously it is .....for Disney's small ocean tank--even dolphins. The key here is size of tank. Ich reaches plague proportions in your average hobbyist's aquaria because of the size of the aquarium and the accessibility of the same fish to the parasite. In a billion gal tank, simulating the ocean, the parasite's life-cycle is easily broken or greatly controlled due to the mass of the water environment. While a fish may become exposed to ich, it can be controlled.
Disney can't use copper either, because I know they have rays, sharks, etc., in those tanks--even dolphins. FW dips is a common method used by professions. If is effective at removing many surface parasites, but leave just 1 parasite, and put that fish in your little tank, and you will have a problem. Your average hobbyist needs to QT, or live to regret it.
Hey beth! Thumbs Up!!
To simplify this even further.....The tanks at Disney are very large... They also have heavier water filtration & more water flow than a tank found in a home setting. The filtration in a public aquarium is also far more advanced than one would have in a home or business setting...
For them to "freshwater dip" is just responsible practice to ensure that any fish than enter contain the smallest possible fraction of "bad" as possible.
Another thing that I have observed, is that compared to home & business tanks is that they do not "Overstock" With rock or livestock.. With more area for parasites to dwell & less to hide, combined with less opportunity to host.. It is unlikely for them to survive
Again more volume, less livestock & heavy water flow & filtration....
equals no opportunity to latch on to a host...
That is not to say that the "bad things" are nonexistant... But that they have very little opportunity to find a host.
In a smaller tank, they are more likely to cause a problem due to the isolation..
That said.. to stress the point, I have yet to see a pic of a fish swimming in the ocean about to die of Ick... I have not seen, read or have had someone tell me otherwise.. I also have experience diving reefs as well & can say.... Nope... Have not seen it there...
Again, Good Job Beth!! I hope you know that I meant no ill. HUGS!
Birdmom
(never said I was an english major))