DOSAGES AND NOTES ON THE MOST COMMON MEDICATION:
Salt:
1.7 kg / 1000 litres (normal conditions) (6 cups)
1.3 kg / 1000 litres(if you have plants that might be affected by salt)
2.6 kg / 1000 litres (during minor health problems) (9 cups)
5 kg / 1000 litres (max during major health problems) (18 cups)
1.7 kg / 100 litres (dip for 10 minutes max - ulcers/parasites) - monitor carefully and if the fish flips over, stop treatment immediately.
Potassium Permanganate:
Aerate the water as much as possible, because it might deplete the water from oxygen
Popular disinfectant and treatment of almost all parasites including Fluke, excluding Leaches and Anchor worm.
It is also very effective against external bacteria and a good treatment for fungus.
Will affect your beneficial bacteria in your filter dramatically.
Although it is extremely effective, it should be used only by experienced Koi keepers as it is quite dangerous and over dosage is normally fatal.
2.65 g / 1000 litres (0.45 teaspoons) If the water turns brown within 30 minutes, you have a lot of organic materiel in the pond. Add one more treatment immediately at 0.3 teaspoons/1000 litres. Repeat treatment two days apart until the water stay pink for at least 8 hours and do a 20% water change a day after each treatment.
If you have too many organic matter in the pond, Potassium is not the right option.
Follow treatment up a week later to treat the newly hatched parasites because the initial treatment would not have killed the eggs or unborn parasites in the case of live bearing parasites.
Malachite Green:
Do not use with salt
Treatment of Leeches, Fish Louse, Anchor worm, White Spot, Trichodina, Chilodonella, Epistylis and Costia, but not Fluke.
Very effective if used in conjunction with Formaldehyde(called F.M.G Mixture) in serious cases.
Good preventative treatment for eggs during breeding(0.2mg/litre or 200 mg/1000 l)
Normal dosage: 1 g / 10 000 litres
Methylene Blue:
Can be used with salt.
Once very popular medication for bacterial, fungal and parasitic infections, but not effective against Fluke or Anchor worm.
Recommended treatment for fungal infections.
It is now used less frequently as it is slightly toxic to plants and can wipe out the beneficial bacteria in a bio filter.
1-2 g / 1000 litres
Dipterex:
This is an insecticide normally used for catterpillars and marketed by Bayer as such.
Very effective treatment for Anchorworm and Fish Louse.
Can be dangerous if used in water above 20 degree Celsius.
Can cause spinal injury.
10 g / 10 000 litres
Dimilin:
Recommended treatment for Anchor worm and Fish Louse and safer alternative for Dipterex.
10 g / 10 000 litres
Acriflavin:
Acts as a disease preventative as well as a general tonic.
Highly successful treatment of velvet.
Extremely effective in the prevention of egg fungus and disease