Salts 0.3% Good or Bad at all time in Pond??

[An Ly]

Salts does wonders to Koi, but is it good to always have a salt level of at least 0.3% in ponds, I noticed the algae along the side of the pond lining stop growing or die off and not sure how this level of salt will affect the filtration system, a couple of people i talk to said does not affect the bacteria flora in the filtration, but i doubt this, not sure what majority of members think about maintaining a salt level in their ponds and at what level is a good level at all time, or none at all and only good for salt bath in quarantine tank.

[RayJordan]

I would only use salt when needed not all the time.

[MCA]

IMHO, healthy koi need extra salt like they do a bicycle. They should get all they need from the water changes and food.

Use salt if and when you need to treat a koi for a parasite or infection. You can find info on that in books such as The Koi Doctor, Advanced Koi Health Care...etc.

Instead of focuing on salinity levels, measure the pond ORP and try to maintain it over 300mV. With high water quality and good ORP...the koi will not need an extra salt or other routine chemicals added.

[KoiCop]

For all you folks just entering the hobby, here's a post that covers all the what's and why's of salt use in our hobby:

Salt . . .

[Tamianth]

If you go and dump the salt in too much too fast it will, but done right (slowly increased) it won't effect the filters. However, Salt is a medication and should be treated as such.