I read that salt will prevent slugs but will it hurt my girls soaking into the groynd
Salt will keep slugs away, if they are out door plants you could spread it far away from your plants but indoors different story. I wouldn’t advise it. I would beleve it could cause nutrient lock out. I hear of salt build up say from your ph being far out of range. But then are they outdoor or indoor plants?
Only my option.
Yes, it could potentially cause problems if it soaks into the roots zone.
Food grade DE would do the same thing and be safe if it washes in the soil.