Second tank.. sea horses?

[underwaterdan]

I am going to try and set up a second tank, I was thinking it would be cool to have a sea horse tank. I was going to use a bio cube(anyone comment on their noise level?). I wanted to use live sand and take water from my display tank for it. Anyone have any experience with bio cubes and sea horses?

 

[dakoop]

I have a bio cube set up I was going to use for sea horses but decided against it. The tank isn't noisy to me.
Horses scared me. Do lots of research before you jump in.