Since I have no extra power heads yet, with just occasional stirring by hand, how long should I let the new salt water sit before doing my water change? Is 24 hrs or so enough? No visible salt is resting on the bottom.
I'm not sure what the "right answer" is, but as soon as mine was mixed and sitting for a couple of hours, I put it in with no problem. Since then, I've begun to use a power head and slowly made the new water over a few days.
I would think the air bubbles would keep the salt particles in suspension longer, therefore taking a longer time to dissolve. IME 24hrs is fine when using a PH.
Not to hijack your thread, but I have a related question...
I am using a 10gal with a small max-jet to mix salt water. I have the venturi air tube hooked up and am using it on a low setting to aerate the salt water. Is this bad since someone just mentioned that the bubbles keep the salt in suspension?
Can I rely on a turbulent water serface only to aerate the water, or is it OK to keep using the venturi?? :notsure:
:happyfish
I don't think the venturi will hurt anything. It's not like it's your display tank where bubbles are a bad thing. Using an airstone works about as well as a powerhead for mixing up saltwater. Both methods stir up the salt until it disolves, then give the water a chance to mix with the air and come to a balance. The saltwater will absorb or release carbon dioxide until it reaches a chemically stable balance. At that point you remove the airstone or powerhead, and let anything that didn't disolve settle out before using the water.