@jessejames Hi mate first thing you need to do is sort out some more light for that plant!! it's leggy like that because its looking for light
If you are unsure whether you need bettter ventilation the answer is probably yes as it can get quite warm with running growlights etc also the plants will appreciate a regular exchange of fresh air so look into an exhaust fan intake fan and atleast one normal oscillating type fan to blow air around the room and plant/s