Telling the difference between 2 plants at an early age.

Hi there I germinated some very old thai weed seeds along with my current grow but I have mixed them up. I know at least 4 seeds are super iced grapefruit (SIG) and I have 2 that I dont know what they are. Is there a certain stage in growth, the earlier the better, that you can tell the difference between two sorts of plants?

Some of the seedlings look much healthier and the leaves greener. I think these are the SIG and the browner weaker looking ones are thai.

Any help, I want to separate the two types and put the thai outside because its a hardy grower and I will using to make hash.

Any pics? You can definitely tell the difference between 2 strains...As long as the genetics aren't too closely related.

Shyt, you can tell the diff between two strains.. . when you have GROWN them before. let me hand you two seeds with two names and you tell the diff.

RawBudzski said:

Shyt, you can tell the diff between two strains.. . when you have GROWN them before. let me hand you two seeds with two names and you tell the diff.

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He should be able to pick out the 2 thais in the bunch. There's only six plants, by what I read...and the 4 SIG's will look almost identical.

google the gennetics then sativa, indica dominant leaves