06-24-2010, 06:00 AM
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If the fish are going back to the store right after the wedding and can be kept in a filtered tank between time, yes, this can be made to work. Keeping them in small bowls for a few days is not something I'd suggest... they'd have to be pretty tiny to make that work and then your friend would be better off with a different type of fish.
One suggestion that would work better would be to use long fin danios, either leopard or blue. They aren't large, have long pretty fins, are active, and could easily spend a couple of days in a bowl if it isn't for any longer than that. They are much sturdier than goldfish. The last few weddings I helped do such a thing with... 2 of them went with danios instead and reported afterwards that it worked perfectly for them... and all the fish came back to us in good shape.
White cloud or gold white cloud minnows are another option that could work well. The gold white clouds are bright & colorful, active, sturdy, and small enough to work in that type of situation.
I have also helped people do such a thing using bettas... which also worked well provided the room temp isn't too cold for them. With the bettas we were able to assemble bowls with small lip at the top, with a small piece of colored netting (found at any craft or fabric store) in the wedding colors, which was rubberbanded over the top of the bowls to prevent the fish from jumping out and other stuff from getting in. The netting can be punctured in the center to allow for bamboo or peace lilies to sit into the bowls which only added to the attractiveness of them and made them appear more like real table centerpieces (while staying cheap & easy to put together).
Those would all be better choices than any type of goldfish.