"M" wrote in message
ups.com...
Strange question I am sure, I know that some pets get upset when the
owner goes away for a while, or drops them off at the vets, do fish get
mad?


Absolutely!.. but the length of memory is relatively short, and varies by
species. Any fish which profits from learned experiences (ie: carnivores
hunting) tends to have a more persistent memory, as do larger omnivores.
I don't recall my Bettas have a particularly good memory (if it didn't
involve food ;~), but others here with more experience would be able to
comment more accurately.
--
www.NetMax.tk