Here's a picture that has both. You can see the bubbles from the bottom diffuser disks in the rear left of the picture. The junk on the top of the water closest to me is debris from a storm caught in some Sago Pondweed.



www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).