This is just my personal opinion for whatever it is worth, But if I had a bottle of Microbe-Lift Xtreme I would think the best place to put it is in my toilet. However, we have out own septic system so I would be worried about harming it.
There is also evidence that aloe vera can be harmful to fish gills when the aloe is in the water. This is a completely different situation that when aloe vera is dietary.
The above comes from here, I suggest folks have a quick read:
https://aquariumscience.org/index.php/5-5-3-water-conditioners/
I used ti have a study on this bookmarked. However, over time, institutions move things and the link I had was no longer any good and I had the title of the paper replace by the words Aloe Vera Bad. So I could not do a search by the paper title
Doing a search on Google scholar for aloe vera and fish basically returns a ton of studies. but almost all of then involve aloe vera as a dietary supplement.