I love the AquaClears. Have only had an issue with one that I had neglected.
If you can, do go with two filters on the tank, not only for water turn over but also incase one of the filters should fail and go un-noticed for a bit of time. You'll still have a fully seeded/cycled filter there incase of die off of the other.
For those of us with multi-tank symdrome, having a second filter on each tank with fully seeded filter media is always a great way to start up a new tank.
If you can, do go with two filters on the tank, not only for water turn over but also incase one of the filters should fail and go un-noticed for a bit of time. You'll still have a fully seeded/cycled filter there incase of die off of the other.
For those of us with multi-tank symdrome, having a second filter on each tank with fully seeded filter media is always a great way to start up a new tank.