Adding some grow beds to the system.

I decided to go ahead and do some grow beds on the lower level of the system instead of doing more NFT tubes. I want to see how well they do in the same system. I want to try and have the tubes on the top tier feed the beds on the lower tier and then everything just drain back to the tank and only use 1 pump. I will be very happy if this works.

Here are some pictures of the beds and the bell siphons installed and system plumbed to drain into the fish tank.

 Yes that is a potato cannon sitting off to the left lol.