Getting rid of fireflies on render This question has been asked a few times before, but even after following tutorials such as this one

and following the settings, I've been unable to get rid of fireflies in my render. The current render looks like this: 

What additional steps can I take to decrease the amount of fireflies / reduce graininess in my renders? I've tried clamping and all of the other techniques in the tutorial but it doesn't seem to help, or at best, has a minimal effect.

Here's the model itself. It's pretty simple, no textures (just shaders).


For reference, the blend file is here: https://transfer.sh/yITqe/spaceship.blend
Increasing the samples amount helps enormously in your scene.
Also, you are mixing up the terms a bit. Fireflies are those white pixels that wont go away even when rendering with a lot of samples.
What you are experiencing is just called noise.

Result with 1000 samples: