External Filter Pipe Positioning

[fishman1]

Hi all i have just recently upraded from 190l to 450l,the 450 is running 2 fluval 405 external filters

I was just wondering were you guys position your filter inlet /outlet tubes i have mine in the two rear corners inlet about 1 inch above the gravel and the outlet 1 inch below the surface

Should i move one of the outlets so it is about halfway down the tank as i think the bottom half of the tank is not getting much movement
does anybody else do this and does it help?

 

[Harlequins]

I have my 2 tetratec externals, the inlets in each corner about an inch above the sand and the spraybars on the back on the tank at the top spraying forward across to the front of the tank,these are just below the surface,giving surface movement,and i know they're pushing flow down to the bottom has the plants move and the front of the tank is clear of debris.