First page see:
http://www.ufrgs.br/ni/vol1num2%5C1(2)s ... tes_02.pdf
Platydoras costatus cleans Hoplias malabaricus!
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Jools
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That's risky work! Does the paper record if this was at night?
Jools
Jools
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spiny
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cleaner fishes
Interesting! Usually in saltwater, the fish that wants cleaning, turns its head a bit down, and darkens in colour. Do you know if this is the case here (in freshwater)?
Bjorn H S
"Oh, uh, this..the moon is in the wrong position!"
Ozzy Osbourne
"Oh, uh, this..the moon is in the wrong position!"
Ozzy Osbourne
More info on Platydoras cleaning
The Platydoras were 7 cm, the Hoplias 30 cm. It was a daytime observation, although no time is given. Astonishing (also for the authors) as P. costatus is strictly and Hoplias partially nocturnal.
Harro
Harro