# Hydroponics **URL:** https://ilgmforum.com/c/grow-mediums/hydroponics/45.md [Latest](https://ilgmforum.com/latest.md) · [Categories](https://ilgmforum.com/categories.md) · [Tags](https://ilgmforum.com/tags.md) --- ## [The proper PH for Hydroponics id 5.8](https://ilgmforum.com/t/the-proper-ph-for-hydroponics-id-5-8/2107)
**Author:** [@latewood](https://ilgmforum.com/u/latewood)\ **Replies:** 8\ **Last updated:** [June 5, 2023, 8:41pm UTC](https://ilgmforum.com/t/the-proper-ph-for-hydroponics-id-5-8/2107 "2023-06-05T20:41:48Z")
Although we can allow a variance up to +/- .3-.4; i.e: 5.4-6.2; We want to keep the PH as close to 5.8 as possible. No need to panic if the PH gets a bit off, but do not let it stray beyond these variables! Peace, lw … --- ## [32 gal RDWC question](https://ilgmforum.com/t/32-gal-rdwc-question/121416)
**Author:** [@jdw](https://ilgmforum.com/u/jdw)\ **Replies:** 8\ **Last updated:** [June 13, 2026, 10:28pm UTC](https://ilgmforum.com/t/32-gal-rdwc-question/121416 "2026-06-13T22:28:36Z")
I’m using Jack’s 321 with Ro water, What should I shoot for for my ec32 gal water in 17 gal tubs in 4 totes. @Myfriendis410 @Growdoc @Bamarayne @ peachfuzz @ --- ## [Starting seeds for hydro](https://ilgmforum.com/t/starting-seeds-for-hydro/107648)
**Author:** [@Rockdog62](https://ilgmforum.com/u/Rockdog62)\ **Replies:** 41\ **Last updated:** [February 26, 2026, 2:38pm UTC](https://ilgmforum.com/t/starting-seeds-for-hydro/107648 "2026-02-26T14:38:09Z")
So, only grown 2 plants so far. Both very fairly successful. Gearing up for round 3 and thinking hydro. Got a simple Dwc rig from vivosun and successfully growing tomatoes. So im looking for some guidance as to how bes… --- ## [Grow medium - Soil to coco?](https://ilgmforum.com/t/grow-medium-soil-to-coco/121496)
**Author:** [@Outtheback](https://ilgmforum.com/u/Outtheback)\ **Replies:** 3\ **Last updated:** [January 23, 2026, 7:30pm UTC](https://ilgmforum.com/t/grow-medium-soil-to-coco/121496 "2026-01-23T19:30:12Z")
Hi ILGM Team! Newbie here, Just wondering if I have a seedling in soil can I transplant into coco? Any help would be greatly appreciated, have a good 1 --- ## [New to hydroponic growing](https://ilgmforum.com/t/new-to-hydroponic-growing/105163)
**Author:** [@Iwork2hard](https://ilgmforum.com/u/Iwork2hard)\ **Replies:** 7\ **Last updated:** [October 30, 2025, 6:52pm UTC](https://ilgmforum.com/t/new-to-hydroponic-growing/105163 "2025-10-30T18:52:17Z")
Ok I have been growing 30 :heavy\_plus\_sign: years not a single grow in hydro. I would love it if someone could walk me through my first hydro grow. Everything still in boxes. I have a 60gal 6 bucket aircube ebb & flow i … --- ## [Water Filtration Questions? Ask Nanashi 0\_o 12 Years in The Business](https://ilgmforum.com/t/water-filtration-questions-ask-nanashi-0-o-12-years-in-the-business/61336)
**Author:** [@anon4427090](https://ilgmforum.com/u/anon4427090)\ **Replies:** 77\ **Last updated:** [October 23, 2025, 8:08am UTC](https://ilgmforum.com/t/water-filtration-questions-ask-nanashi-0-o-12-years-in-the-business/61336 "2025-10-23T08:08:44Z")
Yep 12 Years as the owner of a water filtration company specializing in well water and R.O. in South Florida and now im retired and bored and wouldn’t mind helping some people who want to Grow some buds Hit me up 0\_o --- ## [Can I germinate a Wedding Cake feminized autoflower seed directly in FoxFarm Ocean Forest soil](https://ilgmforum.com/t/can-i-germinate-a-wedding-cake-feminized-autoflower-seed-directly-in-foxfarm-ocean-forest-soil/120663)
**Author:** [@billygreenbud](https://ilgmforum.com/u/billygreenbud)\ **Replies:** 3\ **Last updated:** [October 13, 2025, 7:43pm UTC](https://ilgmforum.com/t/can-i-germinate-a-wedding-cake-feminized-autoflower-seed-directly-in-foxfarm-ocean-forest-soil/120663 "2025-10-13T19:43:44Z")
I have vivosun 5 gallon grow bags that I plan on filling with Fox farm ocean forest soil and diatomaceous earth. I was wondering if I could pop a wedding cake feminized autoflower seed directly in the soil or should I dr… --- ## [Latest Runtz RDWC grow](https://ilgmforum.com/t/latest-runtz-rdwc-grow/120020)
**Author:** [@Ricochet](https://ilgmforum.com/u/Ricochet)\ **Replies:** 18\ **Last updated:** [October 8, 2025, 9:57am UTC](https://ilgmforum.com/t/latest-runtz-rdwc-grow/120020 "2025-10-08T09:57:01Z")
This is my latest RDWC grow using ILGM Runtz photo. This is currently 4 weeks from seedling. Trying to use as little strata as possible so roots can grow un restricted. --- ## [ChilLed Tech Lights, Lambs Breath Autos & Jack's 321](https://ilgmforum.com/t/chilled-tech-lights-lambs-breath-autos-jacks-321/69386)
**Author:** [@HappyHydroGrower](https://ilgmforum.com/u/HappyHydroGrower)\ **Replies:** 273\ **Last updated:** [September 30, 2025, 4:03am UTC](https://ilgmforum.com/t/chilled-tech-lights-lambs-breath-autos-jacks-321/69386 "2025-09-30T04:03:22Z")
Here we go again! All are welcome to follow with comments and or suggestions. Thanks! 2 Lambs Breath autos. 5’ x 10’ x 8’ grow room with sink and running water. (2 Plants) RDWC: two 20 gal. totes and a 18 gal trash c… --- ## [DWC water turning foggy and smelly](https://ilgmforum.com/t/dwc-water-turning-foggy-and-smelly/30692)
**Author:** [@Hydrogrower](https://ilgmforum.com/u/Hydrogrower)\ **Replies:** 39\ **Last updated:** [July 16, 2025, 4:08pm UTC](https://ilgmforum.com/t/dwc-water-turning-foggy-and-smelly/30692 "2025-07-16T16:08:18Z")
I am using a 5 gallon DWC 3 Mendo Cheese plants 3rd week of veg. One of the buckets all of a sudden got foggy and smelly. I have changed the water out even swapped buckets twice and this foggy water problem keeps coming … --- ## [Went from 5-gallon buckets to Costco totes, 25+ gallons](https://ilgmforum.com/t/went-from-5-gallon-buckets-to-costco-totes-25-gallons/119111)
**Author:** [@Darran](https://ilgmforum.com/u/Darran)\ **Replies:** 10\ **Last updated:** [July 11, 2025, 3:56am UTC](https://ilgmforum.com/t/went-from-5-gallon-buckets-to-costco-totes-25-gallons/119111 "2025-07-11T03:56:06Z")
Hey all. If you have seen some of my other posts, you have probably seen that I do all of my growing outside. I live in Southern California. I always tell people that I am about 15 minutes from the Mouse Ears. This ou… --- ## [Brown slime in RDWC](https://ilgmforum.com/t/brown-slime-in-rdwc/68754)
**Author:** [@Mundo702](https://ilgmforum.com/u/Mundo702)\ **Replies:** 10\ **Last updated:** [July 1, 2025, 11:45pm UTC](https://ilgmforum.com/t/brown-slime-in-rdwc/68754 "2025-07-01T23:45:15Z")
My plants are only two weeks old and they have brown slime, what can I do to fix this --- ## [I think I royally screwed the pooch](https://ilgmforum.com/t/i-think-i-royally-screwed-the-pooch/119369)
**Author:** [@Darran](https://ilgmforum.com/u/Darran)\ **Replies:** 15\ **Last updated:** [June 19, 2025, 5:27pm UTC](https://ilgmforum.com/t/i-think-i-royally-screwed-the-pooch/119369 "2025-06-19T17:27:00Z")
First thing to be said, don’t get frustrated, don’t hurry through something without thinking logically about it, don’t be afraid to admit and own your mistakes. Share your knowledge, your successes and your failures. Th… --- ## [Ed's RDWC adventures](https://ilgmforum.com/t/eds-rdwc-adventures/118176)
**Author:** [@Ed43758](https://ilgmforum.com/u/Ed43758)\ **Replies:** 207\ **Last updated:** [May 8, 2025, 11:37pm UTC](https://ilgmforum.com/t/eds-rdwc-adventures/118176 "2025-05-08T23:37:59Z")
--- ## [OK, I am sold on Jack's. Now what?](https://ilgmforum.com/t/ok-i-am-sold-on-jacks-now-what/73388)
**Author:** [@MudslideSlim](https://ilgmforum.com/u/MudslideSlim)\ **Replies:** 6\ **Last updated:** [April 23, 2025, 1:44am UTC](https://ilgmforum.com/t/ok-i-am-sold-on-jacks-now-what/73388 "2025-04-23T01:44:54Z")
Hi all, since being strongly advised to consider Jacks 321 for my grows, I’ve been binging on videos and articles on it. Given what it does for the money I am sold. I am also confused. There are a ton of suggestions abou… --- ## [Another Hydrotron Automated Grow](https://ilgmforum.com/t/another-hydrotron-automated-grow/117209)
**Author:** [@SonofHeisenberg](https://ilgmforum.com/u/SonofHeisenberg)\ **Replies:** 21\ **Last updated:** [April 20, 2025, 12:55pm UTC](https://ilgmforum.com/t/another-hydrotron-automated-grow/117209 "2025-04-20T12:55:42Z")
Here begins another Hydrotron grow. 5 ILGM seeds started, 5 seedlings germinated and moved to grow room. Have posted a grows few before. But each grow, I find little tweaks that may be worth sharing… The grow room… --- ## [Nutrient lock-hydroponic grow](https://ilgmforum.com/t/nutrient-lock-hydroponic-grow/118433)
**Author:** [@ILGM.Support](https://ilgmforum.com/u/ILGM.Support)\ **Replies:** 3\ **Last updated:** [April 4, 2025, 4:22pm UTC](https://ilgmforum.com/t/nutrient-lock-hydroponic-grow/118433 "2025-04-04T16:22:31Z")
From a fellow grower: I am growing LSD seeds. About two months ago, during the flowering stage, I noticed nutrient lock. I corrected it. My plants are still growing. The pistils that were present have been brown for week… --- ## [RDWC bucket sizing question](https://ilgmforum.com/t/rdwc-bucket-sizing-question/91830)
**Author:** [@samiam](https://ilgmforum.com/u/samiam)\ **Replies:** 4\ **Last updated:** [February 18, 2025, 11:48am UTC](https://ilgmforum.com/t/rdwc-bucket-sizing-question/91830 "2025-02-18T11:48:18Z")
@Myfriendis410 - hey, now that i setup the ro you suggested (works great, thanks), i am off on my next setup rdwc. i picked up 2 17 gal containers from the store - mainly for reservoir but got to thinking will this be o… --- ## [Building RDWC system, any help appriciated](https://ilgmforum.com/t/building-rdwc-system-any-help-appriciated/117731)
**Author:** [@Leo\_valdez](https://ilgmforum.com/u/Leo_valdez)\ **Replies:** 16\ **Last updated:** [February 16, 2025, 7:22pm UTC](https://ilgmforum.com/t/building-rdwc-system-any-help-appriciated/117731 "2025-02-16T19:22:31Z")
Hey everyone I know this topic is similar to others but im trying to design a 9 plant RDWC system and had a few questions. Will this design work? The red lines are return and green are fill. Other info: 2 in pvc pipe … --- ## [Does the initial PH of Coco matter?](https://ilgmforum.com/t/does-the-initial-ph-of-coco-matter/117271)
**Author:** [@cc014572](https://ilgmforum.com/u/cc014572)\ **Replies:** 8\ **Last updated:** [January 25, 2025, 12:12am UTC](https://ilgmforum.com/t/does-the-initial-ph-of-coco-matter/117271 "2025-01-25T00:12:17Z")
Last 4 grows very successful in coco/perlite using frequent fertigation ala “coco for cannbis”. Been using “cloud coir”, link below. Note, even though “ready to use” I always wash in PH’d cal-mag water mostly to rem… --- ## [RDWC Plumbing Best Setup](https://ilgmforum.com/t/rdwc-plumbing-best-setup/117144)
**Author:** [@RS3Driver](https://ilgmforum.com/u/RS3Driver)\ **Replies:** 17\ **Last updated:** [January 22, 2025, 11:30am UTC](https://ilgmforum.com/t/rdwc-plumbing-best-setup/117144 "2025-01-22T11:30:05Z")
Hey guys I am in the process of building my first RDWC setup. As it sits it will consist of 4x 7.5 gallon totes. 1 reservoir and 3 plant sites. I am using 2 inch pvc and bulkheads to connect everything, no waterfall a… --- ## [Hydroguard question](https://ilgmforum.com/t/hydroguard-question/115031)
**Author:** [@jdw](https://ilgmforum.com/u/jdw)\ **Replies:** 6\ **Last updated:** [January 21, 2025, 1:33pm UTC](https://ilgmforum.com/t/hydroguard-question/115031 "2025-01-21T13:33:19Z")
Starting a rdwc in 17 gal totes, plan on using 20 gal of ro for my reservior how much hydro guard should i use and often do i add. Plan on changing res about every 10 days. @ Retiredoldguy --- ## [When to drain and refill RDWC system? Weekly? Essential?](https://ilgmforum.com/t/when-to-drain-and-refill-rdwc-system-weekly-essential/9986)
**Author:** [@McLovin777](https://ilgmforum.com/u/McLovin777)\ **Replies:** 14\ **Last updated:** [January 15, 2025, 4:30am UTC](https://ilgmforum.com/t/when-to-drain-and-refill-rdwc-system-weekly-essential/9986 "2025-01-15T04:30:14Z")
Says it all in the title folks, just wondering when to empty and refill 50 gallons… :disappointed\_relieved: --- ## [Need a hydro mentor](https://ilgmforum.com/t/need-a-hydro-mentor/116799)
**Author:** [@jdw](https://ilgmforum.com/u/jdw)\ **Replies:** 12\ **Last updated:** [January 2, 2025, 6:46pm UTC](https://ilgmforum.com/t/need-a-hydro-mentor/116799 "2025-01-02T18:46:36Z")
Need some help getting threw my second hydro grow. Can anyone please help? --- ## [Question about transplant, rockwool smell, algae](https://ilgmforum.com/t/question-about-transplant-rockwool-smell-algae/116621)
**Author:** [@svleeh](https://ilgmforum.com/u/svleeh)\ **Replies:** 4\ **Last updated:** [December 26, 2024, 11:51am UTC](https://ilgmforum.com/t/question-about-transplant-rockwool-smell-algae/116621 "2024-12-26T11:51:19Z")
Hello grow community! I have some question to you whose more experienced than me. I’ve been growing seedlings in jiffy and then planted ’em to rockwool cubes. Soon as I planted them the algae started to grow on ’em and… --- ## [Question about silica in rdwc](https://ilgmforum.com/t/question-about-silica-in-rdwc/116561)
**Author:** [@jdw](https://ilgmforum.com/u/jdw)\ **Replies:** 7\ **Last updated:** [December 21, 2024, 4:32am UTC](https://ilgmforum.com/t/question-about-silica-in-rdwc/116561 "2024-12-21T04:32:42Z")
Entering week # 2 of flower,was wondering how long do i continue using silica. @low @cooper @Retiredoldguy --- ## [Opinions About This Setup From PA Hydroponics](https://ilgmforum.com/t/opinions-about-this-setup-from-pa-hydroponics/80390)
**Author:** [@StarKiller](https://ilgmforum.com/u/StarKiller)\ **Replies:** 64\ **Last updated:** [November 20, 2024, 7:50pm UTC](https://ilgmforum.com/t/opinions-about-this-setup-from-pa-hydroponics/80390 "2024-11-20T19:50:11Z")
I’m curious is anyone has any experience with hydro setup, or has an opinion on it based on their knowledge and experience? On the one hand, it’s expensive for what you get, but also seems to be much lower priced that m… --- ## [Advice needed flora flex drip irrigation](https://ilgmforum.com/t/advice-needed-flora-flex-drip-irrigation/115505)
**Author:** [@Nomad420](https://ilgmforum.com/u/Nomad420)\ **Replies:** 1\ **Last updated:** [November 3, 2024, 6:01pm UTC](https://ilgmforum.com/t/advice-needed-flora-flex-drip-irrigation/115505 "2024-11-03T18:01:55Z")
First time using one of these pumps the pressure blew the hose out of the connection what is the best way to connect hose to pump thanks in advance --- ## [How do you Mark your Rez levels](https://ilgmforum.com/t/how-do-you-mark-your-rez-levels/83170)
**Author:** [@BeezNeez](https://ilgmforum.com/u/BeezNeez)\ **Replies:** 18\ **Last updated:** [October 3, 2024, 2:37am UTC](https://ilgmforum.com/t/how-do-you-mark-your-rez-levels/83170 "2024-10-03T02:37:39Z")
Looking for suggestions how have “marked” their Rez to measure current water in their system? I did not install a water level tube like I have seen other systems have. So looking for creative ideas how you all have mark… --- ## [Advanced Nutrients Sensi Coco](https://ilgmforum.com/t/advanced-nutrients-sensi-coco/113986)
**Author:** [@Kreeze](https://ilgmforum.com/u/Kreeze)\ **Replies:** 1\ **Last updated:** [September 6, 2024, 12:33am UTC](https://ilgmforum.com/t/advanced-nutrients-sensi-coco/113986 "2024-09-06T00:33:06Z")
Maybe someone who has experience with AN on Coco Soir can help me I reached out to @Lostgirl in another thread and he helped me as much as he could But maybe there is an experienced coco grower here who has something t… [Next page](https://ilgmforum.com/c/grow-mediums/hydroponics/45.md?page=1)