Originally Posted by Afayed
@LittleBlueFishlets I was talking about using the AQ salt for the fin rot and as an anti bacterial, not for bloating.
I am a complete DIY'er when it comes to fish so most things I learn from personal experiences, does AQ salt worsen bloating or something?(So I know for the future)
Epsom salt is a laxative (in both people and fish). If a fish is bloated, it can help relieve the bloat (and any constipation).
Aquarium salt causes water retention (in both people and fish). If a fish is bloated, it can make it worse. Also, Bettas are sensitive to salt. It can only be used a short time (10 days max), as it can harm the internal organs if used for longer periods.
Aquarium salt is used for external issues as it has antibacterial qualities. However, most "salts" - including Epsom salt, have some amount of antibacterial qualities. So the Epsom salt would still have some beneficial effect on a condition like fin rot.