Hello to everyone, I am new to this forum and just setting up my tank, however I am a little unsure of the correct way to set up my filter, after taking advice from my local fish shop I have set the filter from the bottom up, ie white pad, fine sponge, course sponge and then green nitrate but I am not sure this is correct as I cannot work out the total flow direction, I can see that the pump takes its feed from the top of the box and outlets to the side, but the hole set up in the box seems crazy for complete flow through the filter medium. Any advice please.