[Wet Thumb Forum]-Bright lights

[something fishy]

Well I ended up by getting a Fluval 204, which as you are finding with your Eheim, is quite a strong flow for the 20 gal. Likewise later if I wanted to I could use it in something upto 40 Gallons or so. Mine didn't come with a spray bar though I am sure I could get one for it. I found that the "nozzle" pointing at an angle towards the middle of the tank from the right rear corner works well so far. It actually pushes the CO2 laden water from my diffuser around the tank.

-Adrian