I don't think so.
they swim fast with many of the dorsal fins.
They do swim in groups or schools.
Most tetra's swim in schools. Danios and barbs also swim in schools.
an adaptation are its spines that are armed with poison glands
Sharks are fish. Fish swim in 'schools'. Whales and dolphins are mammals. These swim in 'pods'.
They have little books that have how to swim on them
They have little books that have how to swim on them
Fish swim in schools. Other marine species, like whales and dolphins (which are mammals) swim in "pods"
The lionfish belongs in the nekton group. Nekton are aquatic organisms that are able to swim and move independently of water currents, unlike plankton which are drifters, and benthos which dwell at the bottom of a body of water.
no
schools
I have no clue.