2 issues- Algae and Dying torch

[reefwithareefer]

Alright.
So I took the opinion that I had too many nutrients in my tank and tried to figure out from where etc.
I decided my sandbed was probably the culprit. It varies from 1" to 3 inches.I took it all down to about 3/4" deep.

I also took out that sediment filter cloth.

I did a 20% water change after removing eveything.

There is hardly any algae/diatoms growing on the glass after three days.

Another funny thing has happened as well. The one LPS that has been closed for 3 weeks has all of a sudden popped open a lil. All three heads are open. I also have some kind of nuisance "polyp" I am not sure what it is called, but J&L was selling some and said it spreads quickly, needs nutrients and can be a nuisance if allowed to spread. All of it is shrinking and disappearing from my Zoa garden.

The torch is continuing to die. A few strands are left.

A fella came by and got my free sand and confirmed it was not brown jelly and could not see why it was dying. Then again, maybe the nutrients were an issue for it.

So thanks for all the input everyone. Much appreciated.