Interesting...I bought a seahorse, it was swimming around in the tank. The next day it was gone!! I didn't delete it for sure. It just disappeared! I managed to finally get all the 7 magic fish (thanks to everyone who contributed to this forum for little hints along the way!) Also this was strange - the 6th magic fish I found came up as having found it, but when I went back into the tank it wasn't there either!! It was in my trophy case but definitely not in any of the tanks....weird?! So I don't know how I bred it or how much it was worth. Perhaps someone in the shop is stealing my fishies!! This has been a great game however and I'm now just messing about trying to breed some different fish!