"Guayni; SAHS" wrote in message .. .
Thanks for the time "mate", the frankenfilter as you call it (sounds good)
is a 20gal tank with Acrylic subdivisions.
It works fine with a 100gal system but I dare say that it will work on
something bigger.

Looking at you chemical measurements it DOES NOT WORK
that good even on your 100gal system.