Change the price of the specked lea...
Change the price of the specked leaffish to $75, and people will still buy it!!! :D so breed a lot of them (spined fruitfish + greenfin spotanus) and get easy $$$$$!!!!!!!:D
NOTE:
It may take a while to sell them, so open and close the store over and over (about 3-4 times) then you should sell it in not to long!