Like the title says these 4 plants are 23 days old today. I have them under a 250 watt hps on 18/6 light schedule. Let me know how they look and answer the one question i do have. On one of the plants two of the leafs are curving inward. You'll be able to see what i'm talking about in the pictures but what could be causing this? I water the plants every 2-3 days depending on how moise the soil feels.