At 1 month old it is showing serious signs of stress, in all likelihood it is drowning and the soilless mix you are using is complicating matters. With a first grow I would simply find a quality potting soil such as Fox Farms (light warrior is great for seedlings), Pro-mix or Happy Frog. Transplant your seedling(s) to a small. 16-20 oz. container with several holes in the bottom for good drainage. Watering should be very light for at least the first 2-3 weeks. If the seedlings survive transplant-shock you can upgrade to the final container size. Yes, large containers can yield large, productive plants but they can also cause the most common problem to new growers..overwatering. 2nd in line is overfertilization. You should steer clear of any fertilizers for at least the first 3-4 weeks. After that, weak solutions can be gradually ramped up as the plant grows and develops a healthy root sytem. Read the stickies in the newb forum as much as possible.