I got a eel that looks almost like yours except mine only has four eye spots on it's tail . I put in my observation tank for two weeks , never seen it eat . But the food was gone every morning . I guess it ate it or maybe the snails did . It is always moving . Put it in the big tank four day's ago with one 8" red devil , five tiger barbs , 3 green barbs , one albino barb , three pearl green barbs , one 3"parrot , two 1" blue rams , one 3' CLOWN LOCH , one 3" imperial peacock , one 3" gold nugget , two 3" giant dianos , one river rainbow and three yoyo lochs and everybody is happy . The red devil I have had for five years and everybody else from two months to a year . Still have not seen the eel eat . I feed sinking pellets , floating pellets , alga wafers , frozen blood worms , frozen brine shrimp , frozen krill , beef heart , freeze dried krill , freeze dried tubflex worms , red wigglers from the garden , grubs , and little gekos from the side of the house , I guess the eel is eating something in this mix .