I have a powerhead that I use to mix my
SW and a vinyl tube (bought at the hardware store) that attacnes to the end of it. I siphon the water out of my tank into a bucket and then pump the new water into the tank. It makes life easier.
Bigger is better! If you ever used
copper based meds in the
FW tank you will want to take precautions to make sure it does not leach and cause problems. Let us know if you decide to do that and we will help you with it.