tidbit on aquarium salt and planted tanks
Use a little less every day because you're not getting all of it out of the bottom rocks/dirt and plants.
Get two bottles of prime, a little one with the dropper top and one the size of a Red Bull can. The big one will take the same cap as the little one. Prime contains chemicals that bind onto ammonia, nitrite and nitrate to make them much safer for your fish. The effect lasts from about 3 to 5 days, 2 drops per gallon per 2ppm.
(Yes, you can make 5ppm ammonia survivable using six drops of prime per gallon.)