I have a 900 gallons of fish pond in Florida. It has been 6 years raising my goldfish from 2 inches long to 7 t0 14 inches long now. They have been very healthy in the well water pond. Never had to use any medication until now I notice one of them have red bump on the side. But is seems to be active and eats well. My friend suggests I should use water softener salt for preventive measure.

Another gold fish has some scales turned white.

Most recently I have for the firs time used two new products:
1. the ULTRA CLEAR SST (www.ultraclear.com) with live bacteria for clarifying cloudy water.
2. the MICROBE-LIFT (www.microbelift.com) for flocculanting the water.

I wondered if these two treatments caused the above problem?

Appreciate your help ASAP.
Thanks
JYL