advise on protien skimmers?

[dmopar74]

i am going to set up a 38g salt water tank. i have 2 penguin 200 hob's and an aquaclear 400gph powerhead i will be using. i know nothing about protien skimmers, so what are your favs? ive read you should have one rated for twice the size of your tank, is this true?

 

[ewurm]

I got a Coralife from Tankbuster, I believe that model would be perfect for a 40. Hopefully he will be along soon to remind me which model.