aquarium salt - can I use it??

Please forgive my ignorance on the topic, but I am wondering if I can
use aquarium salt in my 55 gallon freshwater aquarium. The current
inhabitants are as follows:
- otto (one)
- Clown Pl*co (one)
- Yoyo Botia or Pakistani Loach (three)
- Bleeding Heart Tetra (five)

I have read that the Tetras will benefit from having a bit of the
aquarium salt added but am worried about the Yoyo botias, Pl*co and
Otto and what effect the addition of salt will have on them.

Also, I have a gold algae eater in a separate 10 gallon freshwater
tank with some cardinal tetras, would the algae eater benefit or be
harmed by the use of the aquarium salt?

Any and all comments are welcome and appreciated. Thanks.

Kevin