I'd say the plants have brought in parasites and if the whitespot gets into the gills then its not good but there could be other diseases present that are hiding behind the whitespot.
What temperature is the water at, as i would slowly every couple of hours turn it up a notch to the mid 80's f and make sure theres lots of air going in.
Are you using dechlorinator? If not then there could be something in the water thats irritating them. If you are then the flow riding could be gill disease or the parasites in there.
What temperature is the water at, as i would slowly every couple of hours turn it up a notch to the mid 80's f and make sure theres lots of air going in.
Are you using dechlorinator? If not then there could be something in the water thats irritating them. If you are then the flow riding could be gill disease or the parasites in there.