The tank has been going for weeks not days, with previously used substrate, and a used filter, also plants. The water tests ok, I have a master test kit. I do water changes also since I put the fish in it. The fish are an unwanted gift as they are not my choice of species plus I knew the tank wasn't ready as I was still scaping it. Also the tank is 30 gallon.
Do you have me mixed up with another person? I appreciate all the advice I can get, but some of the parameters you have mentioned are not matching mine.
My question was that I had never seen a gold fish that hung around in the same place for any period of time. In my other tank they seem to be on the go all the time. Unusual behavior usually signifies something.
Cheers for all the advice.