Is a tarantulas a producer, an herbivore, a carnivore, a scavenger, or a decomposer.

Tarantulas are carnivores. They eat various prey depending on the size of the tarantula. A large tarantula is capable of eating frogs, mice, and birds while smaller ones prefer small insects like millipedes and cockroaches as a meal. They eat usually once or twice a day.

As someone who owned a tarantula, they are carnivores if kept in captivity. They eat differently according to size, but they mostly eat insects.

How they differently handle their team- hagrid a champion explains this better than me