Need 2 id's please

[Beau_123]

Ok so the other day I saw this little guy running reallly fast around on the glass I have no idea what he is I have never seen one bofore then today I saw this I think it is a pineapple sponge but it doesn't look the same as my otheres

 

[bribo12]

First pic is a pod. Second and third are "pineapple sponges". That is just a name given to sponges with that general look. They are probably different species but still a sponge

 

[Beau_123]

Ok thank you so much. Would the sponge hurt my seahorses?

 

[bribo12]

Nope not at all

 

[Beau_123]

Ok thanks