Sneaky you are definately a fish guru! A wealth of knowledge!
The fish expert of pets.ca
I will change the water tomorrow! and be more dilligent about doing it more often
It's strange because they all started getting spots at the same time.
These fish were dumped on me, a babysitter bought them for my son (10 in all) and put them in my water feature, neeldess to say I was not pleased nor prepared to have these new additions when I returned home and saw them.
I will do my best to take better care of them.
Again, thank you for all the great advise!