Am wondering about the protective mucus blanket/bubble certain wrasses and other species known to form about themselves at night...
Presumably a somewhat toxic covering to protect self while sleeping.
How do they do it? --- Do they blow a bubble and crawl inside? Is it a secretion all over body? Spit it out on surface then roll around in it.
Fish not designed to cover self with slime from mouth. If they do, can't imagine how it is done.
Do they just shake it off or somehow crawl out of it when they wake up?
If toxic, could there be any adverse effect of this stuff floating around in a closed aquarium system?
Don't know if any answers to above...but for some reason I just got to thinking about...
