Hey all, looking for someone who has a sure fire feed schedule for canna coco a/b using autos. I also have pk 13/14, cx regenaroot, cx headmasta and sumo active boost. I’ll be in autopot xl system. (6.6g) and first time using straight coco. I’ve seen some feed charts but the amount of N shown in flower seems high to me but this is different from the organic nutes/soil I’m accustomed to. Also they only show pk in one feeding? I push the limits on my other grows and would be disappointed if I wasn’t hitting the “almost lb” mark per auto like I’ve been getting. Any input is always appreciated.
Don’t they have a feed chart?
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If you are not growing organic, then a grower should be managing runoff PPM to calibrate feed amounts.
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They do but I’ve read from other forums and bits that some people have issues. And not familiar with synthetic nutes.
I’ve been using coco loco which is almost a 50/50 coco/soil mix and being a newbie some grows ago I assumed it was coco and treated it as such. Never had an issue. But I’m using autopots now. You’ve helped me out in the past with my grows. Thanks!
I would highly suggest mixing in perlite
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I use canna and honestly I just use half or 50% less than they recommend and get pretty good results. If you use what they recommend you’ll fry your plants. Then depending on what you use for cal mag i.e cali magic or botanicare cal mag plus also has to be factored in. Cal mag plus has more N in it and if you go to much you will get N tox. Let me know if you want anymore details.
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I also agree with adt187, I use a 70/30 coco perlite mix. You want good drainage, i have never used a coco/ soil mix. Coco is awesome because you have the abilty to do high frequency feeding which results in rapid growth. This is all hinging on good drainage! The soild mixed in the coco might mot drain good enough. Just a thought
I’ve heard this as well. That’s why I’m wondering if someone had a schedule for autos… I appreciate it. Also I have cronk nutrients calmag and also GH calmag. I used every feeding in that soil/coco mix. Everyone is suggesting perlite in the coco? Or the mix soil i stopped using? It was fox farm coco loco which I made the mistake the first time but then used it a second run and both runs (1 fabric 1 autopot run) and it did well. It does have perlite and some pre amendments. Definitely appreciate all the feedback.
Ya no problem dude, balancing the nutrients is a pain in the ass at furst for sure. One wrong move and they can be toast trust me. I usually do this
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Start seeds in rapid rooters for a week just plain water.
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Put my coco mix in solo cups and run a light nutient solution and cal mag through it (same strength first two weeks) a couple times. I use the below nutrient amounts and i found this works pretty good.
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Everything is per gallon, Base A+ B @ 2ml, cal mag 1ml, rhizotonic 15ml, ph to 5.8 and 20% run off 2 times a day for the first couple weeks under T5 light 24/7. That solution should be around 550 to 600 ppm and 1.2 EC but depends on your starting water EC.
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Then step it up to A+B 3ml, cal mag 2ml, rhizo 10ml and ph 5.8. Should be around 1.4 EC and 750 ppm for a week or 2. Depends hiw fast there growing.
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Then step up to A+B 4ml, 5 ml cannazyme, cal mag 3 or 4ml depending if you see any cal mag deficiency. By this time i have transplanted to 1 or 3 gallon fabric pots. Cal mag really raises the EC a lot so be careful. But at first sig of a deficiency increase cal mag by 1 ml to get ahead of it. Then you should be able to stay at that dosage for a while. Less is better cause you don’t want to get toxicity and fet the dreaded claw. At this point you should be under big lights HID or LEDS.
Then increase nutes by 1ml if you see any yellowing or rust spots on leaves and i do 18/6 lighting until flower. I would be careful going above 1.8 EC though. Don’t increase unless they are showing deficiency.
Hope this helps bro
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@Fritzy, definitely appreciate the info. I’ll be using this. I sowed my seeds directly into the 6.6g autopots like I usually do, they are just showing their first true leaves, the last organic nutes I was using is cronk which is for autos, easy feed chart to adjust- but I always mixed calmag then 10 mins later added part a and some other stuff in their lineup, my question is when should I start the feed @ base a+b 2ml/g? Last soil/coco mix I didn’t start feed until the plants were large enough to turn the water on. I’m probably overthinking it but don’t want to starve them. Thanks again for all the info!
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Np bro but honestly i am not familiar with auto pots. But in coco you need to start feeding right away but again you got some soil in your mix too. Because the coco will leach nutes cal mag inpaticular from the plant. So i start with the 2ml right from the start. Just give it the 2 ml A+B and 1 ml calmag, thats about 800 ppm and see how she goes. Good luck and let me know how it goes.
Ok. I see. I’m in 100% coco now. No perlite either. My seedlings are like 4 days old. Autopots are a self watering system. When the roots reach the bottom you open valves to send water to the trays that the pots sit in. The last 2 grows were that coco loco stuff that’s almost a 50/50 soil coco. And it had nutes in it that lasted about 3 ish weeks depending on size. Never actually used the part “A” because coco loco came hot. That’s why I’m worried about this feed chart. Coming from soil and organic nutes designed for autoflowers now to 100%coco and synthetic nutes I’m not sure when to feed and never really had to adjust ec. Just blasted them when flower came to around 1100ppm. (Some more some less) and some say feed when the cotyldons fall off some say feed right away… confusing. Again thanks for taking the time to explain!
Ok makes sense, it is confusing. Start to feed right away then if all coco for sure. I would cut it with perlite if you can, it not not a hugh deal. But ya start with the nute immediately. By the time those little leaves start to yellow the coco will already be pulling cal mag from the roots. You don’t want to start right off with an issue. It sucks trust me.
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These are the last two runs in that weird coco loco stuff.
This is the seedlings now. Too late for perlite unfortunately… and do you use pk13/14? The feed chart states it only gets used in like week 10 or something. I’ll let them dry a bit then feed as you suggested. It also says there’s calmag in canna a+b so add first then mix nutes or don’t use the extra calmag? Again thanks for all the help.
Wow your last runs look awesome bro. I can see you know what your doing. So ya i use PK 13/14 only for 1 week in week 5. Yes canna says they got cal mag but not enough. I always supplement or start to get rust spots or discoloration. Make sure you water every day. Never ket it dry out, rule of thumb is you can never over water coco. But that being said that is with a 70/30 mix. So to be say just water once a day to 20% runoff. If you don’t water to at least 20% the sakts will build up and raise your EC in the root area and cause problems. I also use AN overdrive in week 6 and 7 it fatens the gell out the buds and makes them really dense too. Akso last 2 weeks i use canna boost. The overdrive and boost really do work as they say. The boost makes good taste is great for but development. You can flush is you want people swear by it but idk. My last run buds where hugh and nice but the smoke had a sort of chemical taste to it. People told me xause you didn’t flush. Nobody ever really helped me with feeding schedule i learned by trial and error. So ilI hope it gelps you out bro
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Wanted to clarify PK13/14 week 5 in flower and the boost and overdrive i mentioned are also in flower. My bad i didn’t state that earlier. Also forgot to ask did you rinse and buffer your coco before putting seedling in? Shit will be a lot smoother if you buffer the coco. If you did not i suggest you water at least twice a day to satisfy the caten exchange so the coco has time to soak up the cal mag it wants. Then you can go once a day good luck bro 
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Ok I’ll def add calmag. Still first in water correct? Also you mentioned water everyday but today I noticed there’s some white mold looking stuff at the base of one seedling. Not sure because I didn’t want to disturb the roots. I may have damped off the seedling. In the soil mix I had I watered maybe twice before maybe 3 nodes and never had an issue but you mentioned earlier to not let coco dry out. I may have went too far! Coco is attitude problem substrate… you said you use pk once and bud boosters. I was gonna get canna boost but I decided on sumo boost active because it was cheaper. I also have cx regenaroot and cx headmasta. Haven’t gotten solid evidence of using recharge and fish sht/synth nutes in coco but in soil it was crazy growth. As for the coco I got bags of canna coco pro + which states it’s buffered already. I suppose I’ll see?… I also read into cation exchange about the ions attracting cal mag and iron. Interesting sht. But now I’m afraid to water cause i may have to rip her out and on to another seedling. I also may use the pk @ 3 times in flower. Push some limits. Hey @Fritzy i really appreciate all this info. It really is exactly what I’m looking for. Ilgm search wasn’t giving me what I was looking for. Definitely have a little more confidence in this grow now. Again thank you.
No problem, i use same coco but after i tranplanted my last girls to 3 gallon pots in one day i started to see spots on the leaves even though i ran a cal mag and light nute solution through it first. Personally i keep my seedlings in rapid rooters for at least a week. I look and they usually got a pretty good amount of roots before i put it in solo cups. But i run the first nute solution i listed with cal mag and get the coco soaked. Then i actually sprinkle some great white micro in the hole in the pot or solo cup and i dust the roots in the rooter. Sorry forgot to mention that, then drop it in and water a little more so the coco gets around the seedling and rooter good with no air gaps. But i do have one set of true leaves before it goes into coco. Ya if they are tiny and you water too much you are running the risk of dampening off. I have had it happen to me before it is a painful thing. Strange you say you got white mold stuff never got that before. But if the coco is leaching cal mag you will see it within a couple days. Your right growing in coco is like a dark art for sure. I have fucked up many times to learn hard lessons. I will say becareful how much of the PK 13/14 you use i mean the strength, it is pretty strong shit. I found everyone has some different advise. That’s what makes it so hard to get good info. I have had so many things happen so I learned the hard way. Even people on this site will give advise when I know it’s wrong like your over watering coco. Then a few experienced guys chimed in a said you can’t really over water it. Frustrating but when your plant gets going and gets a few nodes i actually water 3 times a day lol. I get explosive growth like 3 times as fast as in soil. It is awesome not to worry about the over watering issue that soil has. Well keep me posted man
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Not sure if putting cal mag in water first is a must but i do. If your using liquid nutes don’t think it matters but might as well. If it gets damping off the seedling will just tip over and lay flat. But the white mold is strange, you got some pics? When i water and the are really small i try not to water at the stem area. So i stay about 1" raduis around it. Once you make it through a couple waterings and no issue you should be good
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