Oh and on the added salt, its a good idea depending on the types of fish you have in those tanks, in fact every week when i get the livebearers in i have them all in 1 Tbsp. per gallon of salt and slowly bring that level down to about 1 tsp. per gallon before selling them.
And i tell everyone who buys them what conditions they are in and give people a free sample of aquarium salt to start them off.
But thats only for livebearers.
But thats a whole nother complicated matter. haha