Is there really consensus that heat is not enough? Most threads I read said heat and water changes can be enough.
I feel like a fool for not adding salt. However, i'm worried about my scaleless fish. I have a clown loach and an RTC. I do not want them to be at risk of death due to salt.
rtc can handle salt per

https://www.monsterfishkeepers.com/forums/threads/adding-salt-to-rtc-tank.647540/
another person adding about 2 tablespoons per gallon of dissolved salt to a tank of clown loaches, however stating that 1 tablespoon per gallon should suffice ( if I did my math correctly)
https://www.monsterfishkeepers.com/forums/threads/loaches-and-salt-tolerance.552111/