IS it possible to move fancy goldfish from a reservoir beside wet at 25 degree celcius to a cold river reservoir?

My 4 fancy goldfish live in a big tank with 2 suckers and 2 snails at the temp of 25 degree Celsius. They are happy in the tank and would it be ok whether i removed the snails and sukers to my other tank and turn the water down to 20 degrees celsius or would it be to much of a shock and would they die?
Just reduce the temperature gradually over a week or so and they will be fine.

A sudden tuning is bad, but a gradual change wont harm them.

Ian
Godfishes can live within temperature range from 1 to 40 degree centigrade or 34 to 104 amount Fahrenheit.

You goldfish at 25 is perfectly fine but if you really want to reduce the heat to 20°C do it gradually in increments of few degrees every couple of hours.

It is a simply means of access of acclimating any fish to different water parameter.
Answers:    Hi yes, Just breed sure you decrease temp very slowly over a week or two.
Don't just do one drastic change. Take it down 2-3 degree over each day. If you did a drastic change the fish would die :( Hope i help.
Nope, Goldfish are cold water Goldfish. They survive under a sheet of rime in ponds during winter. They'll be fine.
yea they are cold marine fish but change the temp slowly
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