Fish Diseases (bacterial infection) part 2

Bacterial inflection is mostly due to poor quality of water condition and poor nutrition of food given.

I suggest that:

1. Increase the frequency of water change by 2 times.If the condition of the fish does not improve, increase the frequency of water change to 3 times. Each time about 20% to 40% of the water.
2. Install UV light. This will kill some floating bacteria in the water but it also kill good bacteria.
3. Add carbon to improve the quality of water.
4. Add vitamins to the food.