Thanks Rainman, that's why I double checked here first. You may have just saved my fish.
Unfortunately I've bombed today on trying to find a source for alum locally. My southern states couldn't even come up with none. I have a Helena distributer 1 hour from me that said he sat on 1000# for over a year and couldn't move it so he sent it to Michigan last Thursday. Just my luck.
I Can order it but the shipping for 250# pretty much takes it out of play.
I'm now looking at phosclear. I can get 120# shipped for $ 360. Has anyone used this and what are the opinions? Any advice would be much appreciated.
Thanks