It must be different here in Australia... Here is the part where I got this
from on the australia horticulture site...



3) Dump Muriate of Potash:


Muriate contains 50% microbe-killing chlorine. Sulfate of Potash may be more
expensive, but most Queensland soils are sulfur deficient, and this benefit
should be factored into the cost difference. It is always difficult to
quantify microbe damage, because the organisms are not visible, but there is
ample, visible evidence when we consider earthworms: NTS have collected
several reports of reduced earthworm numbers following prolonged use of
Muriate. Leading American consultants cite cases where this phenomenon is
reversed. Earthworms tend to return following a switch from muriate of
Potash to Sulfate of potash.

Just thought it might be a bit dangerous in aquariums...

Thanks

Justin.

"Elaine T" wrote in message
. ..
Justin wrote:
Hi all,

I may be a bit out of my league here... But I am also trying to source
K2SO4 and was excited when I found Muriate of Potash in a local brand
here in Australia. But I have been doing some more research on the net,
searching Australian sites and one of the horticulture sites said that
Muriate of Potash has 50% chlorine and to use Sulfate of Potash...
However the company that makes the Muriate of Potash does not list it as
an incredient...

Just thought I'd throw this is...

Jusitn.

KCl is the chemical formula for muriate of potash. Muriate is another
name for chloride salt so the chloride (not chlorine) wouldn't be listed
separately. K2S04 is preferred for planted tanks, but I've been using
Kent K, which is KCl and getting nice results.

--
Elaine T __
http://eethomp.com/fish.html '__
rec.aquaria.* FAQ http://faq.thekrib.com