Bristlenose Pleco Inside Sponge Filter Outlet??

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Laserfy2

Feeder Fish
MFK Member
Aug 2, 2020
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Hello, I've caught my Bristlenose pleco sticking her head in a sponge filter outlet and I don't know whether to be concerned?
 
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What diameter? If it's 1in/25mm or larger then no issues. My BNP use a 25mm diameter cave drilled into a log for spawning.
 
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The Bristlenose is eating the bio film inside the tube. The Pleco should know to back out of it.
You seem to have an unwarranted high opinion of bristlenose's intelligence...
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