On Fri, 14 Jul 2006 10:07:36 -0500, "Koi-Lo" ¤?¤@ö½.Õ..Õ¢ wrote:

"Jolly Fisherman" wrote in message
.. .
Of course I'm not making any claims. I'm just trying to understand
why closed tank is "necessary" and not just "wise" or "conservative."
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I've had GF for years and breed them right behind my house in 150 to 680g
tanks. I don't see it as "necessary" to close the tanks to new fish that
are carefully quarantined and treated for parasites. Parasites were always
the biggest problem with them. Ulcers were the biggie with their close
relatives, the koi carp. Once you remove any parasites they may be
carrying, keep them in good healthy conditions and feed them well - they
thrive and reproduce rapidly and prolifically.

What medicine/what is your treatment for new fish?