so i would like to build a cold water river, its only a 30 gal tank, the idea is to have my over hanging filter on one side of the tank, and on the same side of tank the sand would be realy high and gradually sloping down, into a pool of water...now my idea is on the over hanging filter to connect a hose from the input tube threw the sand across the bottom of the tank into the pool of water so that it draws water from one side of the tank and pushes it down the "river".. now i dont think this will work, i dont think the filter will be powerful enough to draw water from that far. the other end of the tank is 36" away, is there a simpler way i could do this? , there is a diagram attached to this post if you need to see what im talking about
