It’s possible the nutrient is mixed at a higher concentration than the seedling need. Most growers don’t run full recipe strength. Normally we shouldn’t start feeding seedlings until the 2-3 week. Then light diluted feedings. I would try running 1/2 strength of the nutrient you are using until things improve. Check the condition of the plants in a week, might see an improvement with green growth. A few questions for you: Are you measuring accurately when mixing? What order do you put in each component into your reservoir? How many liters is your reservoir? What temp are you keeping in the reservoir? How do you check pH? What are you using to measure ppm? Distance of light from plants. hope to hear from soon. Blue
im using 1/3 of full recipe strength ( they say 5ml of each bottle for 10L water, i used for 30L water. What i used seem to me very weak nute strength….im thinking maybe i used too much CalMag…they say on bottle 2ml CalMag Per 1L of RO water…i have used 1ml per 1L so added 30ml of CalMag to 30L water. how do most growers do ? What they use first 2-3 weeks? i dont get first question…i measure by syringe My RO water 70ppm, first i add CalMag till get 250ppm mix good then i add Micro mix good, then grow mix good, then bloom mix good and adjust PH. 30L reservoir for 3 babies Res temps 19-22C well i keep bringing It down to 18-19 with ice bottles Im checking ph with blue Lab ph probe, im keeping it all the time im in the reservoir along with EC/TDS/ppm probe, using blue Lab Guardian to measure. Light distance 1meter they are like 24 days old since i germinated the seeds. 0,5 EC Uploaded a photo of soil baby and rdwc baby to see color difference…maybe helps. They same strain and age thank you mate… as you seen is damn hard to get Any other people opinions around here…probably all well stoned hehehe
I’ve been reviewing your post and the nutrient labels that you are using. I think I found a reason for your concern. You say that you cal/mag your reservoir and then add the TriPart nutrients. The Grow Part contains Magnesium. You are also using the Soft version of the Micro which contains Calcium. On the website they say if you use RO water you should use the Soft version of Micro. Nowhere in the TriPart info do they say add Cal/Mag. It’s possible that if you stop using the extra Cal/Mag things will settle down. If it appears that you feel you need to boost the diluted nutrient solution, just raise your nutrient mls closer to recommended rates. Does this make sense? Post a photo of your reservoir. How often will you be changing your reservoir nutrient? Today my reservoir is 77.5F/25C. I don’t worry about those temps.
For a comparison, this about 21 days from germination. Your growth rate appears to similar to this seedling, maybe yours has an extra node and a set of leaves.
Hello @Thoruk Just following up with you. I’m not going to forget about you. If you need to reach out to me about your grow, feel free to. Blue
Yes that makes sense mate…i have added 5L RO water and 5ml more of each grow/micro/bloom and seem they doing better, thank you that can be a big find…but im still confused atm…but seems we’re gonna break this down, thank you i done my best results using this method and bag seeds…. I mean this method of getting your RO water to 250ppm before add nutrients…i have learn this from a guy on YouTube called HygroHybrid but next grows i changed nutes from tri part to nova max also bought seeds/clones hopeing for even better results but never ever i could hit same again. But what you telling me now its enlighting just im still confused about what says on CalMag bottle…they say dont use call mag with T.A. Soft water formulations DualPart Coco or NovaMax they already got enought cal mag….but they dont say anything about TriPart nutrients. Also i never seen bottle of NovaMax to say soft water or hard water on the bottle… i will post photo of cal mag bottle…if you can help me figure these things will be reallly amazing. i change every 10days but for these girls i havent change yet…been waiting to see what is going on. They going in big res in few days as they started to look better Photo of my res you want in or out ? Errrr 25C how not getting root rot(phytium)?
Glad to hear that you are seeing an improvement. The latest photos look good. Photos of the inside and outside of your reservoir would help me understand your mechanics and plumbing . Regarding the cal/mag issue. The manufacturer of your Cal/mag list 3 products they don’t recommend adding Cal/mag to because those other products have enough in them already. There are many plant products that don’t need additional Cal/mag either. They haven’t listed those, it’s up to us to figure it out. So let’s forget about the Cal /mag bottle for now. I assume that you don’t trust your tap water at the faucet. Starting with un-pHed RO water, add each of your TriPart in this order Grow Bloom Micro soft Now you adjust the pH. There is more for me to suggest: 1. Botanicare Hydrogaurd. This is a beneficial bacteria that colonizes the root mass. It takes the space on the root that phythium blight wants to occupy. Think of it as competition for space. If you use it through out the grow it will be strong on the roots before phythium wants to start. The ideal temp for cannabis is 24c. If you think your solution temp are going to exceed 25-26c you should be using Hydrogaurd. My system is different than yours. It runs cooler that a DWRC, doesn’t need ice bottles. Blue’s Small Shed Grow 2. Botanicare Silicablast. Silica is essential for strong cell walls. Disease and fungus must penetrate the cell walls in order to affect the plant in a negative manner. Insects that probe the leaf surface find it difficult to probe then suck juices when cell wall are thick and strong. if you decide to use Silicablast you mix the entire reservoir solution and adjust pH last. Both Botanicare products are available from European hydro companies. I suggest that you put aside your thoughts about the other products you are not using. Focus on the TriPart products with Soft Micro, it is formulated to have the Calcium and Magnesium that you probably need. Wait until there are possible symptoms before considering additional additional Cal/Mag. My first 2 weeks of veg I don’t change the solution, I just run the first batch through 2weeks. After that I change it weekly. hopefully I haven’t given you to much information at once. What part of Europe are you in? I’m in the Rocky Mountains of Colorado USA
Can you please tell me what is going on with these? from seed…growing in COMPO Sana compost soil ( COMPO SANA® Potting Soil for Balcony Plants ) I water them only once with RO water with call mag and ph 6.3 is this deficiency or overdose? I never can tell the difference ☹️
I looked at the soil manufacturer site to read the specifications. The information says that the soil blend has all the nutrients needed for first 6 weeks of plant growth. A couple of thoughts: May not need the CalMag here either. How old from seed pop are they in the photo? You are pH-ing your water after you added CalMag. Have you tried to check the pH of the run off after it drains from the container? If it’s high pH, that soil may be the problem.
Thanks for the kind words. So glad to help. It’s nice to hear that you have improved your grow. Most of the forum members here really mean well but don’t have an academic background. I am a retired landscape designer. My college studies were: Horticulture Botany Greenhouse Operations Plant propagation Tree Science Irrigation technology Soil Science Fertilizer Science Landscape Construction And so much more. All I did was read the labels and listen to your issues. It really didn’t take long to find a fix for you. Cheers