I recently set up a new 20 gallon tank and it’s still cycling at the moment with an Aqueon 20. However, I realized ~2 weeks after running this filter that one with a larger capacity would be more helpful. Now I’m trying to decide between an Aqueon 30, Aquaclear 30, or Fluval C3 if I decide to get another. Which would you choose and why? I mapped out the prices and Fluval will be cheapest long term although Aqueon is the one I am most familiar with. Also how would I go about changing out the filter without disrupting the cycle? Would taking out cartridge and pad and putting it in the new filter help?