If the water quality is good and there is 0 ammonia, 0 nitrite, and less than 30ppm nitrate then it will need treating.
Try to find a medication with Methylene Blue in or use a broad spectrum medication that treats fungus and bacteria.
Try to treat the fish in a separate tank so the medication doesn't affect the filter.
To work out the volume of water in the tank:
measure length x width x height in cm.
divide by 1000.
= volume in litres.
When you measure the height, measure from the top of the gravel to the top of the water level.
There is a Calculator in the "How To Tips" tab of the forum that will convert litres to US or British gallons.
Remove carbon from filter before treating or the carbon will absorb the medication.
Before treating the tank, wipe the inside of the glass, do a 75% water change, and complete gravel clean.
Make sure any new water is free of chlorine/ chloramine before it is added to the tank.
Try to find a medication with Methylene Blue in or use a broad spectrum medication that treats fungus and bacteria.
Try to treat the fish in a separate tank so the medication doesn't affect the filter.
To work out the volume of water in the tank:
measure length x width x height in cm.
divide by 1000.
= volume in litres.
When you measure the height, measure from the top of the gravel to the top of the water level.
There is a Calculator in the "How To Tips" tab of the forum that will convert litres to US or British gallons.
Remove carbon from filter before treating or the carbon will absorb the medication.
Before treating the tank, wipe the inside of the glass, do a 75% water change, and complete gravel clean.
Make sure any new water is free of chlorine/ chloramine before it is added to the tank.