Just wandering, I'm setting up a 2'x1'1.5' SW tank, and I'm looking to keep a small eel that won't grow massively big like any of the Morays. i won't have the space or the financial support to maintian such a huge one, though I would love to! Are there any? I'm still very new to all this so I'm not sure what's what. Are eels in general hard to keep? Are they hardy fish? What sorta fishs, invertebrates and crusteans can I keep with them?