robdog013

If there wasn't enough cyclical movement I was going to run an airline into it

I can see a lot of water movement and there is more water movement at the top near the inlet for the durso

In my weir overflow I have a durso about 4/5 of the way up and the weir is always filled with water, can I put k2 media in here or is it too dirty because the water hasn't gone through any mechanical filtration yet?