Greenga's Coco Grow Journal

I’m starting my 2nd grow…. And I previously used FFOF and strawberry fields. I had thrips and decided maybe try a different medium. I have the coco noir and perlite from FF and I am seeing some different info on nutes and ph. But I haven’t found any specific post with info on this soil and nute combo. I have FF big bloom, tiger bloom and grow big for my nutes. Any ainfo appreciated!

You’ll need to add a cal/mag product if using the FF Trio.

pH is independent of the nutrient product used, but the grow media does matter. pH should be maintained btw 5.8 and 6.2 when in coco.

I do have the bush doctor cal mag. Forgot to mention that. How often should I use the cal mag and or how do I know when to use? And should I flush this medium every 2 weeks?

I don’t know about every 2 weeks, but flushing will be necessary at some point if using the FF Trio. The reason for flushing is to wash out mineral salts, and there’s no reason to flush if there is no salt buildup. The way you can tell that you have a salt buildup is when runoff pH becomes difficult to manage. All that said, a salt buildup is unlikely until you get a few weeks into flowering.

As far as when - from the start if in coco. Coco is an inert media with no nutrients. Follow the directions on the bottle for how much to use. It’s hard to hurt a plant with cal/mag.

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:+1:t2: I was thinking 2 weeks is kind of often… and being autos it wouldn’t be too bad I suppose but glad to know that it won’t be that much. As far as the nutes, do I follow the recommendations on this chart?

Yes. It will get you close to where you need to be. Do you have a PPM meter? Many growers calibrate their feeding by measuring and monitoring runoff PPM.

You don’t need all of the extra stuff in the chart. Grow Big, Big Bloom, Tiger Bloom, and cal/mag are sufficient.

Whether the plant is an auto or a photo doesn’t make any difference in terms of salts and flushing.

Yes I have a ppm meter. It was really helpful on my first grow! So what I’m picking up is that this medium I’m using nutes right away. As opposed to after a few weeks with the soil.

Coco needs to be fed from the start.

Use your PPM meter to manage runoff PPM and adjust feeding as necessary to maintain a runoff PPM of ~1,000 for a mature plant. Don’t worry if you are off a few hundred PPM here-and-there. It will take some experience to get the hang of it.

It’s best to not overdo PPM on an auto. They have a reputation for being more sensitive to nute levels versus photos.

Thanks @MidwestGuy! I know there’s more questions brewing in my mind but I can’t seem to remember them at the moment. I’ll follow the schedule and cross my fingers :smiley::crossed_fingers:

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You are very welcome. It’s what we are here for.

Use this thread as a grow journal. Post pics, updates, and questions as your grow progresses and we’ll help you along the way.

I can change the title of your thread here to reflect it as a journal if you wish. Let me know.


If you could that would be awesome! I tried to change it under grow support after I posted but couldn’t figure it out.

I changed it to “Greenga’s Coco Grow Journal”

We all love pics (bud porn.)


I am waiting for my banana kush to germinate. The seed hasn’t done anything yet. I’m kinda bummed because I wanted these 2 to grow together but I might have to try and start another seed. I’m just worried that if I do start another then I’ll end up with 3 and I’m only in a 3x3 tent!

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:joy: well…. My 1st seed didn’t germinate, did another, that one took off. Put it in the soil and somehow the root was coming up…… and so I put her back in facing down and was afraid that she wouldn’t come up. Well there she is, a little slow but she’s coming along. In the meantime while I was waiting for her I started yet another seed. She germinated and now she’s in the dirt too…. Looks like I’ll have a 3 plants tent again :scream::grimacing::face_exhaling::upside_down_face:


Her leaves don’t look all that great! Any suggestions?

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Have you been feeding? She looks hungry and looks like she may have dried out too much.

I have been feeding, maybe I’m letting it get too dry. She appears moist still but I think I just need to give it more water more often

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Coco needs to remain wet. Moist is the point you need to feed again and to runoff. Catch some of this runoff and test ppm and ph.

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What ppm should I be aiming for on seedlings? The small amount of nutes I’m using is coming out to the 200’s, pH in @ 5.9

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