Pump size for TLF reactors with GAC and NP biopellets?

[Coleus]

Originally Posted by paddyob

Not sure.... I am new to reactors myself... a couple months. I just know alot of media is supposed to tumble in them... but my carbon (Kent) barely moves.

The way i understand it that Carbon tends to be more effective if the water is slowly flowing through it and if too much tumbling action can cause carbon to actually abrade itself into smaller pieces, meaning anything it absorbs can be released back into the tank.