Garden Eels (Heteroconger hassi) are fascinating and for a the advanced aquarist with lots of space, they can be kept in the home aquarium. In order to do so, you'll need a deep sanded so they can burrow and create the holes in which they will live.
I didn't have a lot of footage and so this video just skims the high points of keeping Garden Eels, but more information can be found at the following links:
http://www.advancedaquarist.com/2011/...
http://www.dwazoo.com/animal/spotted... to Fincasters    / fincasters  
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