"Ross Vandegrift" wrote in message
...
Hello everyone,

I'm working on getting my algae under control, but have been
unable to find a source of KNO3 and K2SO4. I've heard that plant
fertilizers have these chemicals, but often contain other things that
make fishkeepers nervous. I checked the local science supply store but
they told me they couldn't order them. I'm a bit worried that lab-grade
chemicals might be too expensive anyhow (ie, ScienceLab.com wants $77
for it's cheapest K2SO4!)

Are there some easy sources for these two chemicals?

--
Ross Vandegrift

you should be able to get those from any hydroponics store

Rick