/r/hydro

Photograph via snooOG

A home for hydroponic gardeners, from hobbyist to commercial growers. Post grow journals, questions, and discussions!

*Important: While we aren't against growing marijuana, this subreddit is for those who want to grow plants that are universally legal. Please refrain from posting marijuana grows. If you are interested in that, please check out r/microgrowery. *

A home for hydroponic gardeners, from hobbyist to commercial growers. Post grow journals, questions, and discussions!

*Important: While we aren't against growing marijuana, this subreddit is for those who want to grow plants that are universally legall. Please refrain from posting marijuana grows. If you are interested in that, please check out r/microgrowery. *

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0

Choosing coco coir grade/type to buy

looking to buy a 50L bag of coco but dont know what to look for and cant go from brand cuz not in the US, local reviews also dont say much cuz most uses it as a soil ammendment instead.
I know about low EC and pre washed and buffered but what about the physical dimension/characteristics of the coco itself? cuz i see several options such as fine or course or coco fiber (the hair looking thing). Images below for course and fine. Heard you want the course one but idt ive seen coco this course in any videos/images in forums. Looking at the "how to prepare and buffer coco coir" video from dr mj coco, it seems that the "fine" coco im looking at will all go through strainer he uses.
Perhaps anyone can try compare it with a reputable high quality coco brand?

https://preview.redd.it/iza03fzaclkd1.jpg?width=438&format=pjpg&auto=webp&s=ef838fd0dad08e831ddd254c3a5528474ec6b72f

https://preview.redd.it/koafle8bclkd1.jpg?width=374&format=pjpg&auto=webp&s=318abafa64205dbfcf20cd38127261970dd892e2

8 Comments
2024/08/24
10:42 UTC

1

I'm just starting Coco+perlite need advance from auto growers

I'm starting a Coco+perlite grow in the like a week and want to start with autos and would like to know a breeder with good genetics for a good yield and potency and anything else I can add to the formula I'm just trying to start of with a good foundation of knowledge before I start

2 Comments
2024/08/23
23:40 UTC

0

Great tools for Indoor Gardening!

Using a combination of Hydro and Traditional farming we have created the first Portable, Storable garden. You guys are all so good at this stuff here, Id love any feedback you could provide.

All the tools you need to grow amazing produce, ANYWHERE (including INSIDE)!
https://www.kickstarter.com/projects/growanywhere/ready-grow-garden-by-grow-anywhere?ref=3n5holĀ 

1 Comment
2024/08/23
18:46 UTC

4

Year Round Growing in an unheated Polytunnel?

First year in the unheated polytunnel / greenhouse. Gets full sun for 70% of the day. North on England.

Happily growing salads and asian greens since spring in an nft system. Tomatoes in dutch buckets and aubergines melons cukes and peppers in a hybrid flood and drain type sytem.

What (if anything) can I start now to keep producing through autumn into winter? Can I go year round or do I mothball some of it until spring?

Advice welcome.

1 Comment
2024/08/22
22:46 UTC

0

Electrochemical sensing for hydropnics

If anyone here wants to take their hydroponics system to the next level I have got a pair of Atlas scientific PH and Conductivity probe kits for sale on a steep discount. If interested DM me for details.

Admins, apologies if this is considered off topic. Feel free to delete it if thats the case.

0 Comments
2024/08/21
18:04 UTC

5

Creating a pretty, high-tech hydroponics unit as a centerpiece

Hey Everyone! šŸ’œšŸ’š I have a rather fun and interesting project I'd like to embark on which I'd be thrilled to get some of your advice for. I am a robotics engineer who also happens to be an artist and plant lover, and I've always found myself sitting and thinking about (read: obsessing over) the idea of creating a really high-tech hydroponics setup to have in my apartment.

This isn't meant to be practical or economical, it's meant to be something cool and wonderful to look at that showcases what can be done in scaled-up automated farms on a much, much smaller scale. I want to have sensors for water level, PH, temp, etc. along peristaltic pumps for delivering solutions. And ultimately, I want this to look beautiful (this is going to be in my living space after all) in a way that shows off how everything works.

My main question for everyone here is, what hydroponic method would be best for something like this? I would greatly appreciate a broad range on takes on this. On the one hand, I can see the value of selecting a method that would make best use out of the tech, and on the other hand, I could see tons of merit in something that could be fantastic to watch (in the same way that we zone out while staring at cute indoor water features).

I'd even love takes on how to make this look good! I've toyed around with the idea of a drip system that uses a mini waterfall behind it as the water delivery system šŸ¤­. And in situations where opaque containers are a must, I've thought about using a wood panel with either hinges or magnets that you can remove to peek at what's going on.

5 Comments
2024/08/20
16:44 UTC

7

Kratky method and reservoir sizes

Hello!

First time hydro grower here. I'm building my own little kratky system that can be refilled without disturbing the roots. I'm experimenting with a few different plants, but I was wondering how you determine the reservoir size for different plants? I assume a basil plant needs less room than a pepper plant, for example, but how much room do the roots really NEED? If I keep an eye on the water level, never let it dip below that ~50% mark, and make sure my nutrients are on point, does it matter?

5 Comments
2024/08/14
23:50 UTC

4 Comments
2024/08/12
04:24 UTC

3

Kratky mason jar fertilizer amount

For setting up mason jars where ideally I don't add any more fertilizer and it uses up what's in the jar, what's the right amount to put? I've seen some places say to use what it says on the fertilizer, does that mean the dosage for 1 week?

2 Comments
2024/08/08
04:46 UTC

3

Food for community

Have you analyzed what the impact could be for a community? How many people could eat from this units? I would like to create a social project for poor communities that has no land to grow their own food!

2 Comments
2024/08/05
14:43 UTC

4

Just a seedling

Hey everyone! I just started a hydroponic tower. Iā€™ll be honest, I really donā€™t have a green thumb but I wanted to give it a try. My tower (of Amazon) came with a timer, how long should it run before turning off? Any starter tips would be great.

2 Comments
2024/08/05
00:24 UTC

32

Are my nutes expired???

Does anyone know if GH Flora line has a "best if used by" date. I'm getting ready to start a new grow and I'm hoping I don't need to buy new nutes. They've been tightly closed in a cool, dark, dry room. Any thoughts?

Thanks!!

22 Comments
2024/08/02
22:45 UTC

8

Can anyone identify this white thread with a brown tip?

Itā€™s all over 3 heads of lettuce and wondering what it is/ safe?

7 Comments
2024/07/31
18:24 UTC

10

Sustainable Eating with Hydroponic Farming

1 Comment
2024/07/31
15:14 UTC

1

Anyone know what this is? jacks nutrients 321

0 Comments
2024/07/31
03:20 UTC

5

The liquid is clear and not pink, it that normal?

22 Comments
2024/07/29
21:26 UTC

2

Sounds like a bit of this crystallized when you shake it. Still good ?

3 Comments
2024/07/29
21:25 UTC

2

at the tail end of the GH nuets

I'm growing some zucchini and tomatoes using beto buckets and General Hydro Floro series. I ran out today (goes threw all lot more than what I thought) so I mixed up some Masterblend with the epsom salts and Cal Ni. I ran the zucchini on plain water for about an hour before I switched it over to the Masterblend. So do I need to do that or can I just pour the masterblend into the GH as it runs low.

5 Comments
2024/07/27
22:13 UTC

0

Slime in flood table

I have some slime growing in a corner of my flood table. What cleaner do you guys recommend? I have plants with a bunch of sphagnum moss, which is pretty sensitive, so hoping to avoid bleach if possible.

4 Comments
2024/07/26
21:51 UTC

5

Updated better pic anyone know what these could be.

I'm using fox farm ocean forest soil.

4 Comments
2024/07/25
17:22 UTC

2

Starting out with Hydroponics

I want to start to grow my own lettuce and herbs, then maybe eventually peppers (assuming I like this hobby).

To test the waters, I was going to buy this grow lamp for $68 (2ft by 2ft). I have a ton of mason jars that I was planning on using as a reservoir for the Kratky method. From what I researched, I should be planting the lettuce 3-4 inches away. From my own math, it works out to like 36 to 64 plants, which seems absolutely ridiculous. I am thinking more like 12? How many could I realistically fit under this lamp?

Also open to other suggestions in terms of set up.

5 Comments
2024/07/24
17:27 UTC

0

Any idead on what these little bugs could be in my soil for my cannibis plant.

Any info would be greatly appreciated just noticed these in my soil around rim of my pot.

15 Comments
2024/07/24
01:55 UTC

1

Complete beginner to hydroponics, few questions

Hello!

Ive been wanting to expand my knowledge of plants better, and am planning on adding plants to my aquariums to make ripariums. I have seen some very clearly successful tanks done this way, and had a few questions before i try and fail because of something that may be obvious to someone experienced in hydroponics. Quick clarification-(ALL PLANTS I PLAN ON USING HAVE BEEN IN DIRT UP TO THIS POINT)

Firstly, i am trying to grasp how submerged the plants should be. From looking around generally, i believe I should hang the pot so the roots are just barely touching the water. I think i saw that it was so that the upper roots can get oxygen? But would they not just dry out..? I dont have experience with LECA, but i dont know if i should use them. Would using clay balls be a safer insurance on the plants health than putting it in the water uncovered?I have heard that pretty much any plant can be converted to hydroponics, however skeptical i am of that. Is that true?

All tanks that i am going to be using have a stable bio-load, established filter, and I am going to get some more aquatic plants in to further help the nitrogen cycle+dissolved oxygen present in the water BEFORE adding the surface plants. I am building a new tank stand soon, and will be using new lights. I was looking for a cheaper alternative, and landed on these LED shop lights. https://www.amazon.com/dp/B07TM97LWY/?coliid=IEEX0ODL7WT3G&colid=2L043E5DLTRDN&ref_=list_c_wl_gv_ov_lig_pi_dp&th=1

My concern is if these would be WAY too bright. Excluding my top rack, there is going to be an 8 inch clearance from the rim of the tank, to the ceiling of the next shelf up. I have seen grow light set ups with the plants literally touching the light, so my thinking is that the distance of the light only matters when its not an LED? (heat concern) Another concern would be algae, which can be controlled, and i aint worried about that. Lastly with the bright light, the plants being used are going to be "indirect sunlight" house plants. how would they be affected with the LED blasting into their leaves?

Thank you in advance, big project and lots to learn, any additional advice is very very welcome

1 Comment
2024/07/23
04:50 UTC

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