I totally agree that Krill Oil is an excellent supplement to take as it really helps to reduce inflammation as well as provide substrates for brain repair/development because of the phospholipids.
Remember though that taking in more Omega-6 means that you will need to take even more Omega-3 to "counteract" the effects that the Omega-6 will have on prostaglandin production.
Unless you are eating a very specialized diet with only grass-fed protein sources, you are almost certainly getting more than enough Omega-6.
This is one area where having MORE of something in a supplement actually makes it less effective.
Something to think about.