Striped Eel Catfish – Pesce Gatto dei Coralli – Plotosus lineatus – www.intotheblue.it – www.intotheblue.link-2025-03-01-15h48m07s822
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Striped Eel Catfish

Striped Eel Catfish, is a species of eeltail catfishes belonging to the family Plotosidae. Like most other members of the genus Plotosus. they possesses highly venomous spines that they can use to sting when threatened. The venom can cause mild to severe symptoms in humans.
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Silvertip Shark

The Silvertip Shark (Carcharhinus albimarginatus) is a large species of requiem shark, in the family Carcharhinidae, with a fragmented distribution throughout the tropical Indian and Pacific Oceans. It is often encountered around offshore islands and coral reefs, and has been known to dive to a depth of 800 m.
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Sponge Callyspongia ramosa

This video was shot during a dive in the Nosy Be coral reef in Madagascar. These sponges are typical of the seabed of Madagascar and of the eastern African areas such as Mozambique and Tanzania. These sponges that live in small colonies can reach 60 cm. in height. 
Spugna marina tubolare – Callyspongia – intotheblue.it – vlcsnap-2020-01-11-10h47m54s498
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Callyspongia

This video was shot during a dive in the Nosy Be coral reef in Madagascar. These sponges are typical of the seabed of Madagascar and of the eastern African areas such as Mozambique and Tanzania. These sponges that live in small colonies can reach 60 cm. in height.
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Nosy Be - Madagascar - Coral reef III

Nosy Be, there are no walls with coral reef but peaks that rise from sandy bottoms of about 20 meters. These benches rise from the seabed and are colonized by many species such as corals, specimens tridacna, sponges and of course the reef fish.