Hi everyone,
I'm setting up a new (bought used) aquarium with an external pump and filter for the first time. My question is about transferring sponge filter media from an internal pump & filter, eheim pick up series. The external pump & filter is eheim 250 and has different filter media. One is a fine, fibrous medium. The other is a sponge type, but much coarser than what is in the pick up series pumps. Which filter medium should I part replace? The sponge?
Thanks in advance!
I'm setting up a new (bought used) aquarium with an external pump and filter for the first time. My question is about transferring sponge filter media from an internal pump & filter, eheim pick up series. The external pump & filter is eheim 250 and has different filter media. One is a fine, fibrous medium. The other is a sponge type, but much coarser than what is in the pick up series pumps. Which filter medium should I part replace? The sponge?
Thanks in advance!