When dialing in the climate in your greenhouse, think about Goldilocks. The temperature shouldn’t be too hot or too cold, the air shouldn’t be too moist or too dry, and the air shouldn’t be too stagnant or too breezy. Here’s how to get everything just right. Also inside: Caring for Pre-Veg Seedlings, Hydroponic Citrus, Light Leaks in a Sealed Growroom, and much more.