Hey @Noob3 so you are basically running a Hydroponic grow. There are zero mutes in your mix unless you’ve added something.
Big question is….? What nutrient line are you going to be using?
I would recommend using a root additive at this point, I use GH RapidStart. Then I also use a Beneficial Microbe as well to keep the root rot at bay to stave off roots dampening, I use HYDROGUARD.
I would also increase PPFD to 300 for seedlings. Try not to let them dry out completely as Coco coir will need daily, later on more than daily, watering.
A trick is to gently lift your pot to check how much water you have.
Cannabis plants grown in coco coir and perlite mix need to be fed with a nutrient solution that is specifically formulated for this medium. Coco coir is an inert medium, meaning it does not provide any nutrients to your plants. Perlite is a porous material that improves the aeration and drainage of the medium, but also does not contain any nutrients.
Some of the nutrients that cannabis plants need are nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S). These are called macronutrients because they are required in large amounts by the plants. There are also micronutrients, such as iron (Fe), zinc (Zn), copper (Cu), manganese (Mn), boron (B), molybdenum (Mo), and chlorine (Cl), that are needed in smaller amounts.
One of the challenges of growing cannabis in coco coir and perlite is to maintain the optimal pH and EC (electrical conductivity) levels of the nutrient solution. The pH is a measure of how acidic or alkaline the solution is, and it affects the availability of nutrients to the plants. The EC is a measure of how concentrated the solution is, and it affects the osmotic pressure and water uptake of the plants. [The ideal pH range for cannabis in coco coir and perlite is between 5.5 and 6.5, and the ideal EC range is between 0.8 and 1.2 mS/cm].
Another challenge is to prevent nutrient deficiencies or toxicities, which can occur due to various factors, such as salt buildup, nutrient lockout, overfeeding, underfeeding, or environmental stress. Some of the common signs of nutrient problems are yellowing, browning, curling, wilting, or spotting of the leaves, as well as stunted growth, reduced yield, or poor quality of the buds. To avoid these issues, it is important to flush the medium regularly with plain water or a mild nutrient solution, to monitor the pH and EC levels of the runoff, and to adjust the feeding schedule and dosage according to the plants’ needs and stages of growth.
There are many brands and products of nutrient solutions available for cannabis growers, and each one may have different instructions and recommendations. It is advisable to follow the manufacturer’s guidelines when feeding your plants, but also to observe the plants’ response and make adjustments as needed. Some of the popular nutrient lines for coco coir and perlite are General Hydroponics, Advanced Nutrients, Canna, and FloraFlex]
Silica is not essential for cannabis plants, but it can provide some benefits if added to the nutrient solution. Silica can help strengthen the cell walls, improve nutrient uptake, increase resistance to environmental stress, and protect against pests and disease. However, silica can also raise the pH of the solution, so you need to monitor and adjust it accordingly. The recommended dosage of silica for cannabis plants is between 0.5 and 1 ml per liter of water. You can use silica supplements that are specially designed for cannabis, such as General Hydroponics Armor Si, Advanced Nutrients Rhino Skin, or FloraFlex Silica. You should start using silica from the vegetative stage until the end of the flowering stage, and flush the medium with plain water before harvest. Silica can help you grow healthier and more productive cannabis plants, but you should use it with caution and care.
glad to help any way i can, if i can
