I say don't expect ANY money for them. Make an ad, ''FREE TO A GOOD HOME". We need to learn from our mistakes, not make a few buck from them. This way the lessons stick.try putting them on craigslist or let-go. Don't expect much money for them and they will be gone quicker than if you try to get your moneys worth. Not going to beat a dead horse, like everyone has said the problem is just that the tank is way overstocked.