Well now, this is a question that has many answers. I personally follow "book recommendations" and feed 2-3 times a week until satiation. Usually twice a week until the belly looks full and then I lay off.
Also, be sure to feed more than just krill. Keep its diet at a variety. Example: Krill, silversides, shrimp, squid, etc. This will prove to be most beneficial to your eel. The reasons are semi-obvious so I won't go into any long explanations.
Just my 2cents and HTH.
[ April 24, 2001: Message edited by: skirk ]