my name is

its been bout a week into veg stage and one of the leafs from the 1st set(jagged leaves) split on the side, then my other plant did the same thing bout 2 days after. it kinda looks like it was cut just a little bit. does anyone know why this is happening? and are the first leaves (smooth round ones) supposed to go bad beacase they are turning yellow but the jagged leaves are doing good other than the splits on the side. if anyone could help me or know a site that could help me, id appreciate it very much. thnx

Night Shadow

I can't explain the splits on the jagged leaves. That has never happened to me. The cotyledons (round leaves) are supposed to dry up, and die. They have everything the plant needs in the beginning stage. When the dry up, and fall off it's time to start feeding your plants.