Just get foam... not the ammonia remover or the carbon. I only used the carbon one if I had to remove meds from the tank and the chemical removers are dangerous... they only absorb so much then release into the tank... they also inhibit the natural tank cycle that happens (ammonia eating bacteria, etc.) I'd just get a box of the foam insterts (I think it comes with 3) and use those.

The trickiest part about cleaning an aquaclear is taking off the cap to the impeller when you have to rinse it. If you can master that, you've got it made.