What kind of filter do you have?
You need to put half the water in a bucket,
put the fish in the bucket, then wash out the tank.
Fill the tank with fresh water, add the water drops,
try to make the water the same temp that it was.
Add the water from the bucket with the fish,
and fed the fish in an hour. They should be fine.
Every week take out 1/4 of the water and replace
with fresh water. Keep the filters clean.If you don't
have a bottom eater fish get one.
Good Luck!!!
