cannabis seeds vary in size, doesn't mean anything as to potency, etc ... the darker seeds are the most likely to be viable, the whitish seeds are immature, germination of them is usually a gamble ... dont let the seeds sit in a puddle, they can get a lethal fungus called Pythium Wilt ... some advise germinating until you see a good bit of taproot showing, I strongly advise against that, I plant 1/4" deep, taproot 'down', as soon as I see the white taproot visible thru the cracked shell ... taproots are very sensitive, and can be killed just with light, so it's best to get them in the dirt ASAP, in my opinion ... and, dont overwater, the most common death-sentence for seedlings ... good luck :smokin: