yes, you would be looking for a long finned or butterfly (Same thing some dealers just call them long fin Koo) I use next day Koo on Eba, yes the shipping is a little steep but if your buying three or four it breaks down to a reasonable amount per fish. Plus you have the option to view several before making your discussion before you purchase one. In a store your going to be lucky to find one much less a option to buy one that is what your looking for. And as noted above, it's getting kind of late in the season, If your going to get a young fish right now I would plan on keeping it in a indoor tank and let it settle until next spring. You really want to wait and watch the fish for at least three to four weeks before putting it in with the rest of your stock in case it has a parasite or disease. You do not want to add to your pond if the temp is close to or under 50 degrees.