Lemon OG, Biotabs & Blumat

Burning from over feeding. Nothing to do with calcium. 18/6 is best for cannabis, they NEED sleep.

have you used their webpage they have a tool for this?? https://biotabs,nl/en/calculator/ all "dots" like in [ . com] are commas to avoid the spam filter. replace the comma with a Dot and the link will work. Good Luck!

Hello ganzigunnu, I know what the problem is here and I had this thing often when growing with Biotabs. This is not light stress but nutrient burn. This symptom is often mistaken for light stress. You can tell the difference really easy because when the plants got light stress the yellow tips only appear on leaves close to the light. With nutrient burn, the tips are usually brown and appear all over the plant. I can see that your plant got burned tips on every node and not just the ones close to the light. You probably overfed a bit with the Orgatrex and the Bactex. Be carefull with the Bactrex. It is really strong and overfeeding with Bactrex is very easy. Read the back of the packaging and it will tell you the same. You can water with hand for 1 time and water till 10% runoff. Let the top 2 inches of the soil dry out. After you can start using the Blumat again and continue like you did before. I also experienced a lot of pH problems during my grows with Biotabs. This problem was solved when I started to use the organic pH min adjuster from Biobizz. It will not harm the bacteria and fungi inside the soil!!! Enjoy your grow!

Looking at the image you shared, it appears that your plants are experiencing a condition known as septoria leaf spot. Septoria leaf spot is a common fungal disease that affects many plants, including cannabis. It is characterized by the appearance of brown spots or necrosis on the leaves, accompanied by a yellow halo around the spots. To address this issue, I would recommend taking the following measures: Remove affected leaves: If the leaves show symptoms of septoria leaf spot, it is important to remove them immediately to prevent the spread of the disease. Make sure to properly dispose of the diseased leaves, away from your healthy plants. Improve air circulation: Septoria leaf spot tends to spread in humid environments with poor air circulation. Ensure good ventilation in your growing space by using fans to keep the air moving and reduce humidity. Adjust humidity levels: Reducing humidity can help prevent the development and spread of fungal diseases. Make sure to maintain appropriate humidity levels in your grow tent, avoiding excess moisture that promotes fungal growth. Consider fungicidal treatments: If the disease persists despite your preventive efforts, you may consider using specific fungicidal treatments for controlling septoria leaf spot. Consult with a cannabis cultivation specialist for recommendations on suitable products and their safe application. Remember, prevention and early management of diseases are crucial for maintaining healthy plants and maximizing production. I hope this information is helpful to you, and I wish you good luck in managing septoria leaf spot and your future cultivation endeavors.