I don't know if you are on Facebook or not but there is a guy in the springs names Randy Newcomb, he was going to sell me 2 for $20. His post is on the group "Colorado Reef Keepers" and was made on June 22. He was actually looking for rock over run with Aiptasia to feed them, and wanted to make an aiptasia tank just for the nudibranches to feed. People also suggested Aquatic Arts for them, might be worth checking into. Good luck.