whiteworm

I found many white bugs crawling quite fast on my torch coral. (Sometimes they remain still.) I dipped the coral in Coral RX for 15 minutes, but it didn’t get rid of them at all. I’m not sure if it’s because of them, but this torch coral seems unhealthy and lacks energy. They cannot be found...

I see this white worm with 2 antenna on any of my tank glass. It too tiny to take photo. You can see beside tape on my glass. That the worm that i ask for Can anyone id this? it harmless or harmfull ?