You are not going to find tank-raised otos. It's rarely accomplished. Most of the losses experienced with otos do in fact have to do with the capture method, transport and the starvation encountered during transport. And I'm sure in most LFS, the employees are not making sure the starving otos are getting what they really want and need to eat. So don't beat yourself up over it. You need to find otos that have been in a tank for a while and have nice bellies. The last otos I bought I found in a Ma and Pa store. I happened to be looking at all the large tanks on the floor that were just chock full of plants for sale. He had a couple of dozen thriving, fat bellied otos in there and they'd been in there a while. I bought 6 and didn't lose any of them. Msjinkzd currently has a tank full of thriving otos. That's where I'd get them while she has them! I wish I had a need for more, I'd grab a few of the ones she has in a heartbeat!!