Freshwater vs Marine aquarium salt?

[ChefConfit]

I was watching a video the other day and @Cory added marine aquarium salt to one of his tanks. He stated he was addi g it primarily for the minerals present in marine salt rather than for salinity. 

My water has basically no minerals in it out of the tap. Would marine salt be feasible for adding minerals in with water changes?

Is there any reason you can't use Marine salt to treat fish like you would freshwater salt?

What other ways do you people recommend for adding minerals to my water?

Edited September 10, 2020 by ChefConfit
Tagging cory

[Wasatchaquatics]

I use marine salt in my guppy and my indoor goldfish tanks. I’ve never had a problem, but I can’t promise it’ll work for a everyone.

 

i don’t add much. They are usually in the 1.001 to 1.002 specific gravity range. 

[Cory]

I did some testing about 10 years ago now, and found it very beneficial to run about 1 teaspoon of marine salt per 20 gallons of water when doing 50% water changes. I never finished my testing to figure out a formula that would work well for lots of different types of water parameters and such, but you might use that as a starting point. 

[HenryKing]

@Cory, do you find any particular brand to be better at having all those trace elements? I've got a heavily planted low light platy/goldfish tank. Instant ocean seems to be the cheapest for me...

 

Edit: Just learned about tagging....

Edited November 9, 2020 by HenryKing