Because of the design of the 405 filter, the water enters the top, and then down the filter sponges and back up through the 4 baskets.
The bottom 2 baskets I would put in noodles to take out the larger particles first and the remaining two baskets I would use the ehiem substrat (as phoenix uses) as my first choice, but if the budget is not that big then the aqua one filter media will do as good a job.
I use this in all my 3 cannister filters and don't change anything for at least a year.
I avoid filter wool, because it gunks up too quickly and you have to change it regularly or your flow will be diminished considerably.