This is really cool! The oto is stuck on the front glass, so you can see the underside. There are 2 'mouths' which pulse as it scoops algae off the glass. There are also 3 tetras in this shot, one to the left of the oto, another to the right and the third is to the right and facing straight in to the camera!
Oto and a few tetras.
Otocinclus
There are 2 tetras in this photo -- can you find them? LOL
That's all.
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