ya I was going to get a Dwarf Lionfish, but I have inverts in there now, a couple of scarlet reef Hermits, plan to get a few shrimp, which is why I dont want a lionfish, even a dwarf lionfish.

What I know right now as far as jellyfish are they have to be in a tank with now hard edges and has to be cold water, just dont know how cold. And sea horses need something to cling on to and cant be in a tank with to much water movement.