I can't claim the this is an original idea, but I wanted to get some feedback if this is good or bad. I either read this here or saw on a video or something similar that gave me this idea. I use HOB on our 40 breeder, 29 and 20L. I have a couple of ACO sponge filters. I used to keep a small size in our 40 breeder to use if I need to setup a QT. Honest, the only reason I don't like the sponge filter is the appearance - I don't like the way to look in the tank.
In the 40 breeder, I have an Aquaclear 70. In the basket, I normally keep 2 sponges, then a filter pad, then a bag of bio media on top. This tank stays crystal clear. Recently, I replaced one of the sponges with 2 sponge filter sponges (side by side and smashed down a little). I only need one, but I put two in there to take up the space. This way, I can take one of them out to put right in the QT when I need it.
Does anyone else do this?