Nobody is going to be able to give you an exact strain. Just not possible. It looks more indica...but, it is definitely a crossed strain.

With you plants...I expect my first set of leaves to die from seed. It just happens because your top leaves will always snuff out the bottom ones. The plants looks fine.

A great grower on here named weedhound once told me, " You can kill your plants by babying them too much. Once I let them grow on their own, I had far less problems. Let nature take its course. You are going to lose some leaves. It happens.:thumbsup: