How height is the seahorse?

Answer 1

well, it all depends.

The average height of a full-grown sea horse is 2-8 inches,

but some can be smaller, such as the Hippocampus satomiae, a little bigger than a pea, has been found on reefs in Indonesia.

or they could be much larger, such as The big-belly seahorse or pot bellied seahorse, Hippocampus abdominalis, is one of the largest seahorse species in the world with a length of up to 35 cm.