rich from infinite aquatics seems to have the best prices on gulpers, he's also a vendor on this site, check his pricelist list in the vendor forums, he usually has them in the 3 to 5 inch range for 60 to 70 dollars, I have two from him, mine were shipped usps, which was my choice, and my fish spent 3 days in transit, so in my opinion usps overnight blows, anyways my gulpers came down with columnaris due to the high amounts of ammonia they were exposed to during shipping, 30 dollars worth the kannaplex later my gulpers are fine, so I would say these fish are pretty hardy surviving somthing as bad as columnaris, I would recommend going with ups or fedex for shipping, it cost more but its worth it, through it all I strongly recommend ordering from rich as he answered all my questions and was extremely helpful during my whole shipping fiasco