It is hard to recover enough from selling fry top cover the cost of feeding them until you sell them. I sell mine at fish club auctions so the price varies a lot but at least it is cash, not store credit. Store credit is a two time loser. They don't give you much credit per fish and they charge you retail list prices for the fish food you end up buying. I'll take the small amount of cash and buy my fish food on-line to save at least half on the food. It is how I get enough for my fish to pay for the food.