I have put 5 teaspoons of Rock salt in a jug of boiling water, waiting for the salt to dissolve and the water to cool down.
Google said 1 teaspoon to every gallon, but i want to be on the safe side, just incase it goe wrong
Goodluck!
Myxazin works really well i'm currently using it on my 19G and i've just about ran out so ordered a 120ml bottle of ebay last night. It's really good!
On the bottle it says it treats:
Ulcers and sores
Body and finrot
Cloudy/pop eye
and other bacterial infections, it works charms!
goodluck!