Provide bright, indirect sunlight. Avoid direct sun, which can scorch the leaves.
Without enough light these girls can get a bit leggy trying to reach for more light. Try a brighter spot to get more compact growth with shorter stems and more leaves. If you have to, trim off those leggy bits and propagate. New growth should come through nice and bushy in the right spot.
To prevent and treat root rot, ensure that the soil has adequate drainage and don't overwater the plant