Glowing Tentacles

1. Make a 400x400 document. Now press "D" on your keyboard to reset the foreground and background colors to black and white. Make sure your background is BLACK.

2. Make a new Layer. Now grab the Custom shape tool. Make sure you select a nice shape to use. Something with lots of waves in it. For example I used the Sun shape:

3. Now apply Filter>Sketch>Chrome and use these settings:

Duplicate the layer and set Darken as the blending option:

Press Ctrl+E to emerge the 2 layers together.

5. Almost done now apply these Hue colors to the layer (Ctrl+U):

6. Duplicate the layer again and now we want to Edit>Transform>Flip Horizontal. After flipping the duplicated layer we once again want to merge the layers together again. Once emerged apply these Blending Options to the layer (Right click layer and select blending options):

I used #00E4FF as my glow colors.

Your final effect should look similar to mine below: