Not sure about the pro plus coco. Does it have pre-added nutrients? If not use the forumlex in 1/4 doses per gallon. If your using tap water you should have the cal mag covered for a newbie. RO water does need to be supplemented with some mag and cal, but at 1/4 doses. Less is always more in hydro or soil-less soil. Coco shows your feeding results within a day or so and can be washed if you tox your plants. That's how I find my sweet spot for feeding. Start with very small doses and listen to the plants. Bump each feeding until you see some stress. Wash with pure RO to de-tox and use the mixture ratio of your previous feeding before the ooops to much feeding. Yeah I know, real scientific. But it's impossible to say what your plants tolerance threshold is and recommend a specific amount of any nutrients. I use the flora series by GH. It took 2 weeks to dial in my feeding mixture. But when you find it, wow, coco is the only way to go.
Thank pal thats really good advise. Ive done it at 1/4 strength like you said and gonna try a feed schedule of once every 5/6 days. Play it by ear as you suggest
Pure coco dries up fast. Never let your coco dry up. If your in pure coco or coco with pearlite 5-6 days is a long time with out water of food. Treat your coco like a hydro grow. Not a soil grow. Again I'm not familiar with coco coir pro plus, it may have a mixture of soil added to it. But if it's pure coco coir fiber or pith you can water whenever you see a need. It's hydro and it really can't be over watered. Coco fully saturated still provides oxygen to your roots. I do a nutrient feed wait to days then a RO with cal-mag feed. Switching back and forth every 2 days. Be sure to get a good runoff to wash the calcium and old salts from the planter. You may see a higher PPM in the runoff depending on how well your coco was washed by the producer. In time the PPM will slowly come down as the salts from the coco are washed out. I use a 5L garden pump sprayer to feed and water my bigger plants. It's a slower process but it's thorough and does a slow even feeding every time. Pouring feed/water into coco will flow right strait through the fibers. I have a video showing me pouring a one liter bottle of water in one spot in my planter on top of the coco. It basically shoots strait through the fiber and exits the bottom with a 80% runoff return. The plant cannot benefit from a fast watering. Sorry for the rambling, just a little smoked:-) Pease and Good fortune in your new grow.
You can but watch your PPMs. With RO your starting at basically zero PPM so with 1/4 doses of nutes per gallon of water you should be fine. Tap water has a lot of solids so PPM is already higher. My tap water is 450ppm, ouch. I can't use it as a base for feeding I have to go with RO water. Being a baby girls you want your food for them at a very minimal PPM. Not a lot is needed to get them going. I'd say 400 to 500ppm and keep your eye on them. If you find your PPM is high mixing both just do them every other feeding. I do a wash every now and then with my tap water. It's full of goodies cannabis likes. It seems to be fine. My ratio right now is hitting 900 to 1100ppm in RO but I'm in week 2 of flower. I kind of break the rules when my plants show no ill effects from higher PPM. When I hit week 4 of flower I push hard for 1500ppm plants accepting. This is my first grow with General Hydroponics. It boosts PPM higher than I'm used to with all the mixing of different grow juices. Kind of hard to stay low PPM and keep my girls fed. And one more thing I've "heard" you need to mix cal-mag or any micro's in your water before adding your nutrients. Don't know, but that's how I do it. Go for the big grow. Peace.
Ok. I looked at them and it does already have nutes in them. I would suggest only giving your seedlings plain ph corrected water for the first 3-4 weeks. Once your plants grow a few nodes and the leaves begin to yellow slightly, begin your 1/4 strength nutes and increase as needed.
They are 11 days from seedling and looking at other people's plants at this age they seem more advanced should i add light nutes?
Anytime man.
