12.7.14: No more changes in column

I feel like there are no more changes going on in my column...which is pretty boring.

The color is relatively the same in both columns.

Column#1:
The water segment in this photo rose to nearly the top of the column.
The mud is still porous, and the water and air pockets are almost all gone.
The cellophane is no longer bulging, so there are no more signs of gas production.

There seem to be spots that are tinges of green near the bottom of the column. I think these are green bacteria of some sort.

 Upclose view of the risen water segment:
There are spots near the top of the column that are tinted orange. Could these be new bacteria?

 Aerial view of Column #1:

Column #2:

I don't see much change in Column two, except for:

1. The mud level rose
2. The "black spots" near the top of the water level are now gone.
3. There is a scum layer on top of the water layer

One thing I have noticed between the two columns is that the mud in Column #2 is not as porous.

I also can't see any black-tinged spots in any region of Column #2.

Column #2 is exposed to oxygen because it's cap is off, so gas exchange occurs here