Are you using Craigslist? I got rid of a lot of fry that way. Local pick-up, and you can preview the homes. I always posted the requirements and asked about folks' setups. I still never made a " profit " though. After raising fry to 1" it's tough to make back what you've invested in foods. The best sellers are rare fish.... I've had success with Tanganyikans and Eartheaters. Mbuna are tough to sell. Good luck though, I hope you find a reliable buyer.