Yes but you need to buy a saltwater filter to replace the freshwater one.
no because if you do it will die.
yo its crazy.it defenetly need salt water to live.but you can make your own salt water at home by adding much salt
You don't have to, but a small amount of salt for freshwater tanks acts as a soothing 'tonic' for freshwater fish. Follow instructions on the package.
No, i wouldn't use it in the freshwater tank. It's been sitting in salt for quite a while, and chances are your salt water sand is comprised of bits of shells. They will throw off the chemistry of your tank and lead to fish loss.
no because if its a freshwater tank the rain has salt in it
The only time salt should be added to a freshwater tank is if there is a specific need for it. (As a medication) Freshwater means just that. NO SALT!!. Keep adding salt and all your fish will die. My advice is when you are doing the next weekly 50% water change that all aquaria need, do not add any salt and then each time you do a water change the water will become less and less salty until you have good fresh water and healthy fish and plants again.
In most cases it is a tank/aquarium that has been constructed out of materials that could/would deteriorate if it was to contain salt water
Saltwater salt, makes it saltwater, for the saltwater fish to survive. Freshwater salt is added to help gill function, reduce stress, combat some health issues and improve water conditions.
Exactly the same way you maintain a freshwater tank: 1 - partial water changes 2 - gravel vacuuming 3 - removal of algae 4 - removal of salt creep
yes just add salt!
No. Bettas are true freshwater fish and do not require salt. Tonic salt for fish is usually sold as a substitute for keeping a healthy water chemistry and will ultimately harm the fish in the long term.
I would add maybe 2 teaspoonsfull of un-iodised/cooking salt to a 10gal tank. I would not waste my money buying aquarium salt for a freshwater set up. Not particularly