Ask-a-Dave's-Gardener: Identification and care water plant!, 2 by dionysiap

dionysiap wrote:
Hello!
I got this lovely water plant, does anyone know what kind of plant it is?

I was also wondering why the top leaves keep turning brown like in the picture, does anybody have any advice?
It's hanging in a pot in my windowsill, it creeps over the edge and hangs down about half a meter. It is hanging under a window though, could it be the cold (air) that blows over it?

Also, every time it gets this murky I carefully take it out of the pot and fully refresh the water, then as long as it is clean I just refill it, is that the right wat to take care of the plant?

Thanks in advance!