Originally posted by Russ:
Very nice pond Cary! Looks postcard perfect.
In the degassing column link you provided, they talk about biomedia. Is this a fancy word for rocks?? Just curious.
Russ,
I'm not Cary, but no, it's not rocks. It's plastic pieces that are hollow inside, have holes etc. that provide a lot of surface area.
As you probably know it can be used to allow bacteria to live on to break down ammonia in recirculating aquaculture systems, but in this case it's to break up the water as it falls, exposes it to oxygen and blows of harmful gases.
