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Showing results 1 to 17 of 17
Search took 0.04 seconds. Search: Posts Made By: dethswatch
Forum: Beginner Discussion 04-21-2021, 10:30 PM
Replies: 6
Views: 1,188
Posted By dethswatch
"Likes a lot of air flow"- what's this _really_ mean?

"X plant wants a lot of air flow"

"Give it a lot of fresh air"

What's this really mean? They can't possibly suck down enough c02 to need more all the time, right?

Does it maybe mean they're...
Forum: Beginner Discussion 04-21-2021, 10:24 PM
Replies: 1
Views: 940
Posted By dethswatch
Does red pigment always mean too much light?

I've got aerial roots on an oncidium that are a few inches long and have red pigment the entire length.

It's under a light but it's rather low light.

Can I take red pigment on roots as an...
Forum: Beginner Discussion 02-06-2021, 10:50 AM
Replies: 2
Views: 376
Posted By dethswatch
does phototropism stress the plant?

I was told that phototropism (bending toward the light) causes a plant stress and that I shouldn't rotate the plant to keep it straightened, if possible.

From what I gather, we're simply talking...
Forum: Terrarium Gardening 07-29-2019, 02:42 PM
Replies: 13
Views: 4,444
Posted By dethswatch
Aren’t the aquarium guys using UV lights to kill...

Aren’t the aquarium guys using UV lights to kill pathogens?
Forum: Terrarium Gardening 07-29-2019, 09:21 AM
Replies: 13
Views: 4,444
Posted By dethswatch
yes, luckily, that hasn’t been an issue. ...

yes, luckily, that hasn’t been an issue.

---------- Post added at 09:20 AM ---------- Previous post was at 09:19 AM ----------



Yes, the tds are all within reasonable ranges before and...
Forum: Terrarium Gardening 07-28-2019, 02:34 PM
Replies: 13
Views: 4,444
Posted By dethswatch
closed-system rewatering and plant wastes?

I've got a wardian case setup that mists and waters and then drains into the same container. The water is exhausted every week so it gets new (tap) water at that point.

I think Ray mentioned that...
Forum: Terrarium Gardening 08-05-2018, 06:11 PM
Replies: 10
Views: 8,387
Posted By dethswatch
I'm late to this thread but I'm growing in a...

I'm late to this thread but I'm growing in a exoterra 18x18x24 with high humidity and what I've learned the hard way is that mold forms when there's not enough airflow (and H is high, etc).

Find a...
Forum: Parts & Equipment 06-02-2018, 11:16 AM
Replies: 26
Views: 9,789
Posted By dethswatch
I've tried that, here's what I found. I...

I've tried that, here's what I found.

I dropped the "2 box" solution (1 cold box, 1 plant box) early on because it was hard to get everything insulated enough to stay cool enough when you piped...
Forum: Growing Under Lights 06-01-2018, 11:02 PM
Replies: 6
Views: 4,478
Posted By dethswatch
I've got the same (?) 18x36 tank and I'm using a...

I've got the same (?) 18x36 tank and I'm using a 1/4" acrylic (plexiglass) top.

It bends a little bit (as you'd expect) but isn't an issue.

My lights heat it by about about 3'f. I'm using a...
Forum: Beginner Discussion 12-26-2017, 11:00 PM
Replies: 11
Views: 4,050
Posted By dethswatch
Vapour-pressure deficit - Wikipedia...

Vapour-pressure deficit - Wikipedia (https://en.wikipedia.org/wiki/Vapour-pressure_deficit).

It's not really practical to worry about until you have sensors watching the readings and activating...
Forum: Beginner Discussion 12-25-2017, 08:12 PM
Replies: 11
Views: 4,050
Posted By dethswatch
Right- so I've got my VPD computer-controlled...

Right- so I've got my VPD computer-controlled from ~5-8 before it kicks in with more humidity.

Are you paying attention to your vpd range?
Forum: Beginner Discussion 12-23-2017, 11:26 PM
Replies: 11
Views: 4,050
Posted By dethswatch
"Airflow is essential!" Ok-- but really, why?

I've read a bunch of articles on in and the best justification I can find is that not drying the plants and general environs promotes fungus, rot, etc.

Also, that it evens out the temps and...
Forum: Advanced Discussion 08-14-2017, 09:40 PM
Replies: 3
Views: 1,816
Posted By dethswatch
Are the stomas open?

I've got a microscope (10x, 40, 100), would it be possible to take a sample (with a paper hole punch possibly?) to find out if the stomas are open at any random point throughout the day?

Or are we...
Forum: Terrarium Gardening 06-18-2017, 07:36 PM
Replies: 8
Views: 4,225
Posted By dethswatch
This is super-accurate: Amazon.com: BUKE MS6508...

This is super-accurate:
Amazon.com: BUKE MS6508 Digital Humidity Temperature Meter Ambient Temperature Relative Humidity Measurement Data Hold Data Logging: Kitchen & Dining...
Forum: Advanced Discussion 05-15-2017, 11:57 AM
Replies: 6
Views: 2,985
Posted By dethswatch
I agree, except that I'm automating it all, so...

I agree, except that I'm automating it all, so the computer gets to worry about all of that.

Do you have any feel for how much it might influence growth, etc, vs just hitting a temp ~80ish and H...
Forum: Advanced Discussion 05-14-2017, 09:20 PM
Replies: 6
Views: 2,985
Posted By dethswatch
Vapor pressure deficit (VPD)- are you paying attention to it?

I'm looking at starting to keep my temp/humidities within the 'ideal' vpd range.

If you've tried it, have you noticed any difference?

Is there any info on orchids and vpd? Either there isn't...
Forum: Beginner Discussion 05-31-2016, 09:08 PM
Replies: 5
Views: 1,768
Posted By dethswatch
"weakly weekly"- is it just to save you time and hassle?

Is 'weakly weekly' just to make it easier on yourself?

If you normally water X amount a wee, with Y fertilizer and it's working, would it work just as well if you watered and fertilized the same...
Showing results 1 to 17 of 17

 
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