First time poster here. I Started a planted tank about 3 months ago. I'm running co2 as well as dosing and using root tabs. I don't know however if I have enough light . Im guessing not as I'm have a hard time getting my carpet plants to spread. Right now I'm running a led Nat geo. I have a tube hood I could add to the led if needed ? If so what bulb would you all recommend? The grass is about 3 weeks old.