Are there any alternatives to fish oil?

You just need to find a suitable source for 1300mg of Omega 3 fatty acids. Most fish oil pills will advertise boldly how much fish oil they have. You have to look close to find the amount of EPA and DHA. With typical fish oil pills, you need 5 a day to get 1300mg. If you want to use a different source of Omega 3 (algal oil, krill oil, etc.), look closely at the label and do the math.