My mom got me a 4" peacock eel for my 10 gallon aquarium (which does have a filter and plants and hiding places.) Contrary to the assurances of the Walmart employee, a bunch of websites say that peacock eels should be in 20-30 gallon tanks. Should I find the peacock eel a new home or will the eel not outgrow the tank as it gets older? Also, what do you think is best to feed the peacock eel? About how long does it take for it to acclimate to the tank? Thanks for any help.