Wayne Sallee wrote:
It also takes longer, and waist salt.

The way I do water changes, is I make the new salt water slightly
saltier than the aquarium water, then pump the new water into the
aquarium into a sock at the bottom of the tank. The new water stays at
the bottom, and the old water goes over the overflow. I also hook a hose
to the side output valve of the return pump plumbing, so I can at the
same time, pump old water from the sump down the drain in the bath tub.

Then you would add fresh water to the tank to get the salinity right again?

George Patterson
Worry doesn't improve the future; it just ruins the present.