I was photographing this underwater plant from my tropical aquarium when I noticed after being done, that there are many small bubbles where I made the cut. I presume these are oxygen bubbles from photosynthesis that leaked out of the cut - since I made this cut while the plant was under heavy illumination for several hours. I think aquarists (scientists?) call this pearling. I thought it made for a pretty picture.
20131214-DSLR_IMG_0268.jpg by
pwnell, on Flickr
Tropical aquarium plant + oxygen bubbles, 10x,DF
20131214-DSLR_IMG_0271.jpg by
pwnell, on Flickr
Tropical aquarium plant + oxygen bubbles, 10x, POL+LP