Should I use Bloom/Flares for this?

In this video,

You can see that the spaceships have very nice looking flares and bloom effects from their thrusters. How did they implement this?

Is Unity Pro required for those bloom effects, if they are in fact bloom effects?

This is a game I wrote as a assignment project 6 months ago.

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I created this effects by attaching a light with lens-flare attached to it. By controlling the intensity of the light, I control the intensity of the flare as well. I did this using Unity Free.

Bloom effects however, is only available in Unity Pro because it involves image post processing.

Wiki on bloom effect

Wiki on lens flare