Prices across America really vary. The only way to get an accurate price is to see what other people are paying for similar fish in your area. Look on LiveAquaria, other online retailers, your LFS
, etc. But realize most people on Craigslist are looking for a good deal so my guess is you'll have a difficult time charging the same rate LiveAquaria or even your LFS
would. But you should be able to get a competitive price and good luck to you. Never an easy decision to get rid of a fish but it's very responsible of you to do that.
If you can't find a buyer, I've found it's nearly impossible to get any money from an LFS
for a fish. None near me will even take a Humu for free because they're so crazy. But there are some LFS
that will give you at least a credit toward another fish if you decide to donate your fish to the store. So ask around!