
Originally Posted by
Koikeeperz
Hello DarkStar & thankyou for pointing out the error of my ways , that it is not a good idea writing notes in bad handwriting , on a flexing piece of paper towel in the wind , by the pond at night then transcribing onto the internet .
I have taken another test in daylight & can confirm the nitrite reading is absolutely NIL . I have changed the previous text accordingly .
On your point of salinity many years ago , lets say 10 years , I did use salt in koi ponds but stopped . I do however still have the residue of a bag of koi pond salt , the salinity meter has long gone .
But if recommended I could buy a hydrometer or more modern electric meter , both are cheap .
I am prepared to try any reasonable recommendation .
Below is an article from Koimedic , the treatment by salt may be worse than the original problem , upsetting Koi osmosis , etc :-
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.