[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: More K+
>Sorry for all these repetitive postings, but, I got to my office this
>morning and looked up the mean chemical contents of world river
>water. Not 10s or 100s of ppm, but 2.3 ppm. So a 3 ppm/day addition
>of K via KNO3 is significant if one is interested in keeping
>soft-water fishes.
Hardness is determined by the amount of Ca and Mg dissolved, not K.
You really shouldn't be concerned about adding too much K--most fresh
water fish typically maintain an internal concentration of about
100-120 ppm K in their blood plasma. Freshwater organisms are
concerned with K retention, not excess K excretion.
If you are adding 3 ppm/day of K to your 10 gallon aquarium, then you
are also adding 4.6 ppm NO3/day. Why are you adding so much? You add
as much as I do to my 90 gallon aquarium. Is your test kit accurate?
Regards,
Mark