It's hard to tell if they are different strains. All I know is that some of them look pretty well off, and a few others look like they have some sort of deficiency. If they all perked up and were healthy, then it might be easier to tell what species is dominant by the structure of the plant. The leaves are pretty wide as of now, though. Looks indica. They all kind of do.

Edit: Oops, I only looked at your first post on the grow log. Some of those seedlings looked a bit unhealthy. But as I looked further down, they looked healthier. To me it all looks pretty much the same, but it's hard to tell. Definitely indica dominant strains... all of them. It would be safe to assume they are the same strain, especially if the weed you got the seeds from all gave the same kind of buzz.