Anybody know how to make the flames and blood on the ground disappear?

I've tried /opt blood 0
but it only gets rid of the blood that didnt touch the ground

/opt particles 0 takes away flames
and uhhh
For the blood maybe turn shaders off or reboot your client then key in /opt blood 0 again.

To disappear blood on floor type /opt bloodstains 0

Any way to decrease or increase?

Increase/ decrease the blood?

I guess no.

Does not work tried it.

Thanks for info guys!

Also: Hurray! My 800th post!

Yeah, just to let you know.
You can only remove it
not decrease it.