8
POND TREATMENT (FOR REFERENCE ONLY)
What is the ideal salt concentration for the pond?
It is recommended to maintain the salt concentration in the range
of about 0.13% to 0.25% (1.3 to 2.5 ppt) in the pond.
Salt concentrations between 0.3% and 0.5% (3 to 5 ppt) will upset
the osmotic balance of some parasites i.e. the parasites’ cells will
dehydrate and thus killing them.
Salt concentration of 0.3% are effective at detoxifying nitrite and
has been used to control string algae.
Nevertheless, 0.3% salt can also stunt water lilies and floating plants
(water hyacinth, water lettuce, etc.) than most bog plants.
For treatment of parasite, it is recommended to treat koi in a
separate container or hospital tank at 0.3% salt. A prolong 0.3% salt
in the whole pond will promote the formation of super parasite that
will get immune to higher salt level.
It is important not to prolong salt level above 0.25% for more than 2
weeks. Dilute pond to 0.1% to 0.2%.
Keep pond at 0.1% to 0.2% salt level and use parasiticides or
antibiotics added concurrently with the treatment.
**This treatment is for general prevention and consultation is
required from your local koi supplier for specific infections.
Using Salt In The Pond In Winter
Adding salt in the pond in the fall will help fish survive the long cold
winter months. We recommend adding 0.5kg – 1.4kg(1 – 3 lbs) of
salt for every 379Litre(100 gallons(US) of water in the pond. We
often add salt in the fall, after taking out floating plants such as
water hyacinths and water lettuce.
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