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"Water column" is the open water in the tank.
I have a thin layer of peat underneath the flourite in my 90gal and IMO it works just fine.
"Thin" is definitely the key word, though- you want to be able to see through the peat to the bottom of the tank.
I have a thin layer of peat underneath the flourite in my 90gal and IMO it works just fine.
"Thin" is definitely the key word, though- you want to be able to see through the peat to the bottom of the tank.
