RedForeman ©® wrote in message
...
speaking from recent experience... same happened to me a month ago...
sharing the knowledge....

Dave, does flourite go bad after 2 years? I'm breaking that tank down and
transferring it and it's residents to a 55g, will be getting another bag
to
fill up....


Flourite itself should be inert, however toxins build up in the substrate
over time and closed systems deteriorate... an argument in favor of ugf's,
incidentally.

kush