In message , Robert
Salmon writes

I separated the plant from its "mother" two years ago. It doesn't grow.
I've tried +/- water, +/- light, a bit of fertilizer. Last summer it was
outside; now it's inside again.

Looking for suggestions.

It looks really soggy - water it less.

Salts from the water have accumulated in the compost, which is unsightly
but won't harm any common houseplant. You can avoid it by watering with
rainwater.
Repot your plant in fresh compost every 2-3 years. When growth starts
in spring is a good time, not when dormant. Proper houseplant compost
is best.

If it won't grow whatever you do, it doesn't like you: give it away and
grow something that does.

--
Sue ]