Rock Wool Medium
Login
User Name
Password   


Registration is FREE. Click to become a member of OrchidBoard community
(You're NOT logged in)

menu menu

Sponsor
Donate Now
and become
Forum Supporter.

Rock Wool Medium
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #71  
Old 10-28-2020, 07:06 PM
WaterWitchin's Avatar
WaterWitchin WaterWitchin is online now
Super Moderator
 

Join Date: Feb 2011
Zone: 6a
Location: Kansas
Posts: 3,080
Default

Quote:
Originally Posted by B727 View Post
@WaterWitchin @Ray
How are you working with those cubes, are you wearing gloves?
In the past I made some really bad experiences with rock wool fibers.
Ummm... I just pick them up by the handful dry. Perhaps that’s why sometimes my hands get itchy.
__________________
Caveat: Everything suggested is based on my environment and culture. Please adjust accordingly.
Reply With Quote
Post Thanks / Like - 1 Likes
Likes B727 liked this post
  #72  
Old 01-09-2021, 06:49 AM
Mr.Fakename's Avatar
Mr.Fakename Mr.Fakename is offline
Senior Member
 

Join Date: Jul 2020
Age: 25
Posts: 358
Rock Wool Medium Male
Default

Any updates on this subject? How are guinea-pig-plants going?
__________________
I fertilise my orchids with the ashes of the ones that didn't want to bloom.
Reply With Quote
  #73  
Old 01-09-2021, 08:51 AM
Ray's Avatar
Ray Ray is online now
Senior Member
 

Join Date: May 2005
Member of:AOS
Location: Oak Island NC
Posts: 12,437
Rock Wool Medium Male
Default

Quote:
Originally Posted by Mr.Fakename View Post
Any updates on this subject? How are guinea-pig-plants going?
It's hard to be definitive in just a few months, but I am not seeing any negative issues and the plants are growing nicely. I expect to go to a mix of the two for all my slippers over time; we'll see on phals.

At this point, 100% of my orchids are in inorganic media:

1) 100% LECA in S/H
2) 50% LECA/50% rock wool cubes in S/H
3) 50% LECA/50% rock wool cubes in traditional culture
4) 100% rock wool cubes in traditional culture
__________________
Ray Barkalow, Orchid Iconoclast
Want Better Plants? READ THIS
firstrays.com

Free Shipping in the US! (see terms & conditions for details)
Reply With Quote
  #74  
Old 01-09-2021, 12:32 PM
WaterWitchin's Avatar
WaterWitchin WaterWitchin is online now
Super Moderator
 

Join Date: Feb 2011
Zone: 6a
Location: Kansas
Posts: 3,080
Default

I've been slowly partially dumping and adding in some rock wool cubes as plants finish blooming, or aren't in active bloom. It appears to hold the dry line higher, especially on glass containers where I had a lower reservoir for certain orchids, then moved a higher requirement for water orchid into same pot (like switching out a phal for a phrag.) Seems to be doing the trick.

After Ray and I had the convo here about adding more rockwool, I've also done that with a few paphs and phrags. I'm nowhere near 50% each, but adding some more appears to help with the dry line on them.

Have a couple of plants that were struggling to switch to SH and I couldn't seem to keep them hydrated enough. Put some rock wool in, and they're starting to plump up and respond. Of course, just recently started doing this whole rock wool bit, so long term effect is unknown. I'm not a fan of rock wool, but if the orchids respond well and I have to water a bit less often, I love it.
__________________
Caveat: Everything suggested is based on my environment and culture. Please adjust accordingly.
Reply With Quote
  #75  
Old 01-12-2021, 08:38 AM
Mr.Fakename's Avatar
Mr.Fakename Mr.Fakename is offline
Senior Member
 

Join Date: Jul 2020
Age: 25
Posts: 358
Rock Wool Medium Male
Default

One more question!

I received some Grodan cubes to try S/H + rock wool; but no matter how I rinse and soak them, they release dust and small pieces that bump alkalinity up around 200 ppm.
At this point I think they lost their structural integrity and are just breaking apart.

Is that considered safe to use and the particles will go away with flushing, or is it a lost battle?
__________________
I fertilise my orchids with the ashes of the ones that didn't want to bloom.
Reply With Quote
  #76  
Old 01-12-2021, 08:55 AM
WaterWitchin's Avatar
WaterWitchin WaterWitchin is online now
Super Moderator
 

Join Date: Feb 2011
Zone: 6a
Location: Kansas
Posts: 3,080
Default

I think we're gonna have to rely on Bill for that one. I don't rinse or soak the cubes. And don't measure alkalinity, pH, etc.
__________________
Caveat: Everything suggested is based on my environment and culture. Please adjust accordingly.
Reply With Quote
  #77  
Old 01-12-2021, 09:15 AM
Ray's Avatar
Ray Ray is online now
Senior Member
 

Join Date: May 2005
Member of:AOS
Location: Oak Island NC
Posts: 12,437
Rock Wool Medium Male
Default

I am not seeing any problems with the cubes breaking apart. Either that I have purchased here and what you’re getting over there are different, or we have to coin the term “media abuser” to you. 😇

Before I started using the product I placed some in RO water and let it soak. As I said earlier, the EC was very low, adding only 20microSiemens/cm, but the pH was slightly on the acidic side, 5.4, pretty consistent with the basalt raw material.
__________________
Ray Barkalow, Orchid Iconoclast
Want Better Plants? READ THIS
firstrays.com

Free Shipping in the US! (see terms & conditions for details)

Last edited by Ray; 01-12-2021 at 09:18 AM..
Reply With Quote
Post Thanks / Like - 1 Likes
Likes Mr.Fakename liked this post
  #78  
Old 01-12-2021, 09:39 AM
Mr.Fakename's Avatar
Mr.Fakename Mr.Fakename is offline
Senior Member
 

Join Date: Jul 2020
Age: 25
Posts: 358
Rock Wool Medium Male
Default

Quote:
Originally Posted by Ray View Post
I am not seeing any problems with the cubes breaking apart. Either that I have purchased here and what you’re getting over there are different, or we have to coin the term “media abuser” to you. 😇

Before I started using the product I placed some in RO water and let it soak. As I said earlier, the EC was very low, adding only 20microSiemens/cm, but the pH was slightly on the acidic side, 5.4, pretty consistent with the basalt raw material.
Touché, I'll be needing Häagen-Dazs to recover from that blow.

The product might be different though, pH reading were around 7.9, and 7 after soaking overnight in a solution of pH 6.

I'll soak it some more and call it a day, it's going to be mixed with LECA and flushed anyway.
__________________
I fertilise my orchids with the ashes of the ones that didn't want to bloom.
Reply With Quote
  #79  
Old 01-12-2021, 09:59 AM
camille1585's Avatar
camille1585 camille1585 is offline
Administrator
 

Join Date: Oct 2007
Location: middle of the Netherlands
Posts: 12,718
Default

We use Grodan and Cultilene rockwool products at work and generally soak them overnight in nutrient solution, adjusted to the pH it would be applied to the plants at (5.8). The pH does rise somewhat after the soak, on account of the residual lime left on the fibers after manufacturing. No idea about the particles though, we only use blocks and slabs.
__________________
Camille

Completely orchid obsessed and loving every minute of it....

My Orchid Photos
Reply With Quote
Reply

Bookmarks

Tags
approximately, cubes, rock, water, wool


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
New to Neo questions (air roots, rock mounts, watering, light) websherpa Vanda Alliance - Neofinetia 24 03-04-2020 10:29 PM
Brassia & lava rock KarlBrown74 Potting & Repotting 5 03-03-2013 05:59 PM
Good medium for Paph repotting? ElenaMarie Beginner Discussion 11 04-17-2012 11:09 AM
How tight should the medium be packed? Im Just Saying Potting & Repotting 18 03-06-2012 03:45 PM
where can I find growing medium online? soundtweakers Beginner Discussion 21 08-20-2009 12:59 PM

All times are GMT -4. The time now is 09:18 AM.

© 2007 OrchidBoard.com
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.