Hi..

Fish keeping is of course a great hobby..

Hmm.., is she at all interested in aquaria..?
And are you familiar with fish keeping..?

Might be a good idea telling her what the plan is..

In my mind giving animals is no good idea as long as there
is no will keeping them (well).

A credit note, some time for thinking about the idea of
fish keeping, an internet research and some basic questions
here or in TFA in advance and _then_ a common walk to a pet
store were possibly an alternative..

HTH..
--
cu
Marco