My next problem is humidity, I have just discovered the humidity in my grow room is approx 26%. Whats the easiest/cheapest way to increase the humidity?
i would suggest that rather than adding moisture with the humidifier (since you risk mildew if to damp) would be restrict your air flow (if you are running a res. hydro system) if you are doing waste to drain then i would just get a large sponge keep it wet in a dish in front of your fan should give you more than enough