No. Some seeds have root hairs which will emerge on day 2 or 3, and it can look a lot like mold. Have no fear, this is normal.  Root hairs are bright white and always appear to congregate around the root itself. Remember, they radiate out from, and are attached to, the central root. Mold on the other hand can be many different colors including gray, black and even blue. If the mold is white, it actually won't be as bright white as root hairs are and will actually have a grayish tint. The most important factor when determining whether you are dealing with mold or root hairs is the fact that mold will spread instead of staying central to the root. If you see something that's spreading across your microgreens tray or it looks more like a grayish spiderweb then you are in fact dealing with mold. To avoid mold: 1. Don't over seed your tray. Our kits come with pre-measured packets designed exactly for the tray size in your kit. Only use the the pre-measured amount of seeds. 2. Don't over water. The hemp growing mats should be moist but never allow excess water to build up in your tray. Be sure to pour off any excess water after saturating your growing mat, and only use the bottom watering method once your humidity cover has been removed. 3. Hemp is ph neutral and naturally mold and rot resistant which is why we choose to use the hemp mats in our kits. To avoid mold, we don't recommend any other growing mediums other than soil.