Posted 1M ago by @CivilGreen

What is wrong with my plant?

Last watered 1 month ago
Too much for the vase. I would take it out, separate the plants (once you take it out from the vase you can see the nodes to tear them apart). I inherited one of those and managed to divide it in 5. Anyway, let them dry the cut for a few days and you can replant them separately.
I agree with @SuperTreemallow it looks like it got too big for its pot. Either going up a size or separating it into smaller plants and repotting with fresh soil in smaller pots should be enough to bring it back.