Looks like the heads of two fish, close together and frozen in time, with so much fresh living algae to eat that they got stuck.
Looks like the heads of two fish, close together and frozen in time, with so much fresh living algae to eat that they got stuck.
Surf, Surf, Surf!
More SURF, this time the SURF8 which is the only 2-compartment scrubber of any kind, allowing one to be harvested while the other keeps filtering.
This SURF2 or 2x shows one of the upflowing bubble holes in the middle of the algae; these holes allow light to go deeper down into the growth.
No this is not green foam in a bathtub. It's a filled up SURF4 or 4x scrubber® in saltwater, and you can sort of see the four growth areas above the four bubble outlets.
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