I will finally be upgrading from the crappy top fin 10 on my 10 gallon tank to a fluval 105. A while ago I gave up on the crappy carbon filters and put in a sponge first for mechanical and then the water passes through a ceramic pack for biological. Since the filter is not very efficient anyway, if I were to simply move the ceramic to the fluval when I set it up do you think I would avoid any kind of mini cycle?