Clone Leaves Are Turning Yellow?

The clone i have has one main leaf and two other leaves branching from the side. The main leaf looks green and healthy but the other two leaves are turning yellow. Not crispy yellow from heat stress but just yellow. Its starting yellow from the tips of the leaves then as you move up the leave the yellownish dies down. My real question is should i cut the two leaves off? Again they are the two leaves branching from the main one.