3.7g methylene blue
3.7g malachite green(oxalate)
1L formaldehyde 37%Max 32%min
1drop per 2gal U.S. at night first day
Same second night
Water change 50% third day
Repeat if needed, add carbon after last water change.
Dont use under PH 6
dont use with temperature over 27C
Keep using only glass with formaldehyde
Keep it away from light and from heat
Half dose with catfish and scale-less fish
2drops per 5 gallons for tetras
Ask the drug store doing it for you, ventilation is needed.
Very large effect, some bacteria, fungal infection and parasite!