I'm suffering more from a nitrate excess at the moment, but found your post searching around. I found the stuff here has the best purity vs. price
Inoxia Chemical Supplies - Potassium Nitrate (Fine)
Hope it helps.
Originally Posted by linda mar
I posted 2 days ago, but either my server ate the post, or something didn't
go right.. so I'm reposting...
ok. I finally got my nitrate test kit, and checked my water... and it reads
ZERO. so.. it's ammonia zero, nitrite zero, nitrate zero (kh/gh=3, pH~7.5).
no wonder my plants aren't growing that much. I don't have enough fish to
maintain a good level of nitrogen compounds to sustain them (may be I should
dump in some gold fish in there...)
anyway, jokes aside...
earlier, someone also recommended that I add potassium. since I also need
nitrates, I guess the best thing to put in would be KNO3 so I can get both K
and NO3 in the tank in one shot. I keep seeing it mentioned in this
newsgroup but I haven't quite made the correlation between the chemical and
now.. so.. where do I get this?