Braune Kleine Flecken auf dem Blatt

It is nothing...........no plant will ever have 100% perfect leaves, 100% of the time. A couple of small spots on one or two leaves is not an issue............you are over thinking things............judge the entire plant, not leaf by leaf.

The start of interveinal chlorosis, but numerous things can cause this symptom. at this point your light mix is basically a soilless medium. you need a full diet, not just calcium and magnesium. Also, seems like you have a pre-chosen volume of water to give. This is the wrong way to do it. You use as much water as it takes to accomplish the job. If treating it like soil, a minimal amount of runoff ensures its' fully saturated. If treating it like a soilless medium, you want 10% or more running out the bottom, religiously. the runoff in soilless mediums is extremely important for maintaining a steady equilibrium of nutes in the substrate - avoids buildup and all sorts of other potential problems. full diet of 1.3-1.5 EC is a good starting opint -- this EC does not include whatever comes in the tap water. Also, better to calculate ppm from gauranteed analysis labels because electrical conductivity is only a correlation and a TDS pen measuring ppm is always inaccurate. hell, depending onthe brand it may use 1 of 4 or 5 covnersion factors, so it's not just inaccurate but whimsical too.

Hey there it looks like early signs of over watering possibly make sure to let spil get completely dry between watering like so dry the plant starts to get saggy just a little then water this will make strong white roots. If not over watering then you probably hit it with the nutrients just a little to much. Every plant had its own level if sensitivity Good luck if things get worse I would check the ph level of the run off water from the bottom the pot the next time the plant need watered. Also if things get worse post more questions someone will get it figured out

Hello, Possible causes: Nutrient deficiency: Magnesium deficiency: This is a common cause of spots on cannabis leaves. It often manifests as yellowing between the leaf veins, which can sometimes appear brownish. Using CalMag indicates an attempt to address this issue, but it may not be sufficient or the deficiency could be more severe. Other nutrient deficiencies: Less likely, but deficiencies of other nutrients like potassium or manganese can also cause spots on the leaves. Pests: Spider mites: These tiny pests can cause small yellow or brown spots on the leaves as they feed on the plant sap. Thrips: These insects can also cause similar spots and leave silver or bronze trails on the leaves. Diseases: Powdery mildew: This fungal disease can cause white, powdery spots on the leaves, although these are usually more widespread. Bacterial spots: This disease can cause small brown spots on the leaves but is less common. Recommendations: Inspect carefully: Magnifying glass: Use a magnifying glass to carefully examine the leaves for signs of pests (e.g., spider mites, thrips). Check for powdery mildew: Look for white, powdery substances on the leaves. Nutrient adjustment: Magnesium levels: If you suspect a magnesium deficiency, consider increasing the CalMag dosage or switching to a fertilizer with higher magnesium content. Environmental factors: Humidity: Ensure that the humidity is appropriate for the plant's growth stage. Too low humidity can increase the risk of pests and nutrient deficiencies. Isolate the plant: If you suspect pests or diseases, isolate the affected plant to prevent the spread to other plants. Merry Christmas, buddy.