Have just bought a four footer 250 litre tank second hand which came with a Fluval 305 external filter. It has a spray bar with it and is about 12 inches long with holes every couple of inches. Its currently turning over the water in the tank at a rate of knots with alot of turbulence and water movement very high. The water is the colour of tea due to some exburance with filling it up on my part. Would a lily pipe reduce the turbulence as Im not sure your supposed to have this level of movement on what is due to become a planted tank over the next few weeks. Any ideas?