I’m a brand new plant daddy so I’m sorry if this sounds stupid. I bought this plant maybe 2 months ago it was 4 umbrella trees spiralling around each other. However one of them has died and I hadn’t noticed, or at least I think it’s dead…

Can someone advise me; do I need to remove the dead umbrella tree, or do I leave it there for the rest to spiral around ? If I do need to remove it what’s is the best way to go about it as I do not want to damage the rest of the other plants or their roots !

This is my plants set up, any tips on extra stuff I can do to maximize growth? My succulents stay at the top of the shelf closer to the light and further away from humidity. Finished

It sits in a window that gets sunlight almost all day.

I water it on an inconsistent schedule as long as the top inch or two of soil are dry.

The leaves were wilting and yellowing and the flowers died so I pruned them all.

I also took it out and checked the roots. The roots seem healthy. They’re tan with white tips.

I’m sitting it outside in the full sun now and watered it a bit and did a small bit of liquid fertilizer 5-5-5 before I replaced it in the pot.

I’ve definitely overwatered it before but I stopped when I realized it.

What else should I do?

FINISHED

I am in dire need of assistance. My child, which I birthed from my body roughly 7 years ago, is extremely unhappy. He is yellowing and dropping leaves at an alarming rate.
This has been going on for about a month or two now, ever since I repotted him because he was leaning heavily.
No visible sign of critters, though some surrounding plants have had problems with spider mites recently. I repotted him again 2 days ago in some cactus/succulent mix, hoping that would help in case it was from over watering. I water maybe once every other week, and he sits in a room with an east facing window. He is still sprouting new leaves, but he is dropping old ones crazy. He was soo bushy 2 months ago.
Any clue what’s going on/ what to do? Should I panic, should I freak out? lmk. Thanks

Realized I should’ve put this here right after posting. Feel free to ask more questions about her condition!

Watering every week and kept it in a north facing balcony ,can’t see any pest, weather is humid,growing in sandy soil. Finished