Malta National Aquarium - Meet one of our aquarium cleaners 🧼 🐠 The sucker-mouth catfish help clean the glass from algae, just like they suck algae from the bottom of the rocks

One type of fish that likes to suck the glass of the aquarium, makes the water clear. And eat the moss and algae Stock Photo

What are those black fish that suck on the glass called? - Quora

What are those black fish that suck on the glass called? - Quora

Fish sucker mouth hi-res stock photography and images - Alamy

Sucker fish aquarium hi-res stock photography and images - Alamy

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What are those black fish that suck on the glass called? - Quora

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Fish sucker mouth hi-res stock photography and images - Alamy

Fish sucker mouth hi-res stock photography and images - Alamy

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