Sponge filter to assist internal filter

[embsidney20]

Hi

I recently got a sponge filter (hygger double) to assist my Roma 125 with its included fluval u3 and I was wondering where would be the best place to position it?

I was going to place it at the opposite end to the filter where the air stone currently is but am wondering if it should be near the other filter instead?

Not sure how to get maximum benefit from it as I've never used one before and I need to avoid crazy flow as I have angel fish

Any help much appreciated!

 

[Fishmanic]

I have mine far away from my hob filter. This improves water circulation and filteringin my opinion. If i have to start up a quarantine tank, I move the sponge filter into it once beneficial bacteria have had time to establish themselves onto the sponge.