Stunted growth

Hello Sure_ty, The plant is looking pretty healthy but could be better if you manage the dry/wet ratio better. Let the top 2 inch (5 centimeters) from the soil dry out completely before watering again. When you water then you want to give water till 20% runoff and let it dry again till the top 2 inches (5 centimeters) are completely dry. This way the plant has the right time to uptake water woth nutrients and take up oxygen in between. Happy Growing Buddy! 💚

Autoflowers man! As you used a coco puck for germination the tap root may have found resistance and triggered early flowering. Best to direct sow seed on soil on your final pot.