I'd like to say, all of the above.
Leave them in the pond. If not, do it the RTB way and start bringing in 2
koi every week so you can get the filter going slowly. Buy LOTS of ammonia
detox, (Amquell, Chloram-X, etc.).
Regarding nitrates in an aquarium. I too bring in my big fancy goldfish, 3
to a 55 gallon, but I let the algae grow on all sides and the no gravel
bottom. I do keep the very front glass clean, so I can see them. This
really helps with the nitrates.
It was quite interesting this summer after the goldfish went out and I put
a pl*co in the tank. The algae all turned black and sloughed off the sides,
now it's practically algae free again. Goldfish will becoming back in very
soon. ~ jan
See my ponds and filter design:
www.jjspond.us
~Keep 'em Wet!~
Tri-Cities WA Zone 7a
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