Sorry PHYTO, not rotts. Brain isn't working. I can't seem to keep the culture going, and as I said, it appears to be a couple of problems.
My cultures get hot, I think I cook them.
I don't change thier water, I have seen the gunk at the bottem.
And I don't re-seed the bottles.
Yup, I think that my be my problems right there.
Thanks for your help.