I've read on many sites that adding salt to freshwater aquariums aids in the overall health in fish, including to help prevent common diseases such as Ick. The amount varies, anywhere from 1 tablespoon for every 5, 10, or 15 gallons.
My question is, is it okay to add salt to a planted tank, and if so, how much? My friend has a bag of "Instant Ocean" salt he uses for his saltwater tank... would that be better to use, or just use the plain freshwater salt without all the "micro elements" the Instant Ocean salt has?
Advice is MUCH appreciated!
I have a 20 gallon long, with an Eheim Pro II filtration, and a small CO2 exchanger inside the tank. I have some Zebra Danio's, Cardinal Tetras, and some Silver Mollies, along with an assortment of 5 different types of plants, placed in a 50/50 mix of Flourite, and Eco-Complete substrate.