I googled the group for an answer to this. There was a similar question
in 1999, with no responses.

I was reading with interest about the benefits of Aloe Vera (eg. Stress
Coat), and was wondering whether it was safe to add raw Aloe Vera
extact (juice) to my tank to achieve the same results as Stress Coat
(minus the de-chlorinating effect, of course).

I have heaps of Aloe Vera growing at home, and this could be a good
potential use.