After 2 year without an ATO, an Tunze osmolator.
When BRS had there sale, I suggested to my sons that it was something I liked and wouldn't be that price again until next year. And then I had them watch me pour in a half gall of fresh water. I was even prepared to bat my eye lashes, although that has never worked for me before.I asked for a specific ATO and got a gift card. Will see what the LFS has in stock.