Because most ribbon eels do not live longer than a month in captivity, some feel that this species should never be purchased. Ribbon eels have been observed in nearly every case to stop eating after being captured. Although there are reports of ribbon eels surviving and eating in captivity for 2 years or more. But most don't survive over a month.
With proper sized tanks, water flow, and depth of proper sand they can be kept for much longer in pairs. well it looks like I am getting two now