hi im new to this forum, and 2 days ago i went to petsmart and bought myself an 8" striped peacock eel, when i looked at him he was hiding under a rock of driftwood with another eel inside, the lady took the eel out and putted it in the bag, when i came home i placed it in my 55 gallon tank which has one angelfish, one gold nugget pleco, and my 4 giant danios, ever since that day he has never buried under the gravel which was good, but he doesn't eat! i have tried to feed him Bloodworm, Tubife worms, brine shrimp, and shrimp pellets, all of them at night time. but all i see is that he swims a lot when is dark but dont see the food and ignores it, and when he sees my shadow it goes back to hiding between the plants. anybody knows whats wrong with him? the water nitrates are below 20ppm and the nitrates are 0, the pH is a bit acidic but not very acid, and he looks healthy as a horse, he has all these beautiful colors on him, but the one thing he won't do is eat! he doent look ill or anything, he likes to swim a lot when i turn off the lights