As far as I know no. The reason that nobody eats them is that it is so difficult to take off there skin (as it is so hard) and even if you do take it off there is barely any meat.
I don't know if this answer is correct. Probably some kinds of seahorse are poisonous!
Yes; in some countries, they are considered a delicacy.
No, because they are so small and thin, their speed is outstanding, they can outswim almost any fish.
There is no such thing as a poisonous horse
No. Non-poisonous sea creatures greatly outnumber poisonous ones.
the most poisonous is the beaked sea snake
A horse that eats a poisonous plant may sicken, and he may die.
Extremely poisonous
No, they are not.
No
a sea horse
Pufferfish is one of the most poisonous fish in the world.
simply....mich sea horse
A sea horse is a consumer.
The most poisonous creature is the sea snake.