All times are UTC + 8 hours




Post new topic Reply to topic  [ 28 posts ]  Go to page Previous  1, 2
Author Message
PostPosted: Feb 1st, '20, 19:06 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jun 16th, '14, 11:41
Posts: 392
Gender: Male
Are you human?: Yes
Location: Northern Rivers, NSW, Australia
Not great photos.

First one is looking up the ramp to the exit.

Second is looking down the ramp at the frass and fresh food. The BSFL are well hidden.

Third shows the PVC capture gear... untested as yet.

Last shows the whole setup from the sideImageImageImageImage

Sent from my Pixel 3 using Tapatalk

_________________
Dave

My first system
My Murray cod system


Top
 Profile  
Reply with quote  
    Advertisement
 
PostPosted: Feb 2nd, '20, 04:10 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jun 16th, '14, 11:41
Posts: 392
Gender: Male
Are you human?: Yes
Location: Northern Rivers, NSW, Australia
The new system works.

But about 1/3 of this morning's self-harvest were mature and went in to the freezer.

It's much dryer in the new system. Maybe humidity is the key to getting the softer ones to self-harvest.

Will experiment and update in a couple of weeks when back from a work trip.Image

Sent from my Pixel 3 using Tapatalk

_________________
Dave

My first system
My Murray cod system


Top
 Profile  
Reply with quote  
PostPosted: Feb 2nd, '20, 07:48 
Offline
Legend Member
Legend Member
User avatar

Joined: Sep 29th, '06, 08:32
Posts: 531
Location: Riverina, NSW
Gender: Male
Are you human?: no
Location: Riverina, NSW
Thanks heaps Dave for then info, very cool, now I have a project.


Top
 Profile  
Reply with quote  
PostPosted: Feb 2nd, '20, 08:06 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jun 16th, '14, 11:41
Posts: 392
Gender: Male
Are you human?: Yes
Location: Northern Rivers, NSW, Australia
Let us know how you go... I reckon there are heaps of people on this forum who would be very interested... whether for financial or environmental reasons.

_________________
Dave

My first system
My Murray cod system


Top
 Profile  
Reply with quote  
PostPosted: Feb 2nd, '20, 10:02 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jun 16th, '14, 11:41
Posts: 392
Gender: Male
Are you human?: Yes
Location: Northern Rivers, NSW, Australia
sitting on a plane with wifi... time to research... I found https://www.researchgate.net/publicatio ... _resources which indicates that humidity is important... at least to some level. I imagine that could be an issue in the Riverina.

The paper indicates that BSFL hatching is more successful and development quicker with higher humidity... but not why they should self-harvest prematurely.

_________________
Dave

My first system
My Murray cod system


Top
 Profile  
Reply with quote  
PostPosted: Feb 2nd, '20, 11:09 
Offline
Xtreme Contributor
Xtreme Contributor
User avatar

Joined: Mar 15th, '13, 09:54
Posts: 221
Gender: Male
Are you human?: yes
Location: Townsville, Gulliver, QLD
high humidity - not a problem in Townsville so thats one variable taken care of.


Top
 Profile  
Reply with quote  
PostPosted: Feb 3rd, '20, 11:30 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Apr 26th, '08, 23:11
Posts: 411
Location: Narrogin, Western Australia
Gender: Male
Location: Narroigin, Western Australia
If you are thinking of starting a new system make sure the ants cant get into it.That's what happened to my first one .First it was the meat ants which if you don't know ,they are quite a large ant. then when I had a closer look there were thousands of very tiny ants as well ,I think they ate the eggs .So now I am starting another one on a table with the legs in tins of water.

_________________
Cheers,Don.


Top
 Profile  
Reply with quote  
PostPosted: Feb 3rd, '20, 12:33 
Offline
Xtreme Contributor
Xtreme Contributor
User avatar

Joined: Mar 15th, '13, 09:54
Posts: 221
Gender: Male
Are you human?: yes
Location: Townsville, Gulliver, QLD
ants are definitely a nuisance especially when they are farming the aphids.
Getting rid of them is not an easy proposition.
The slightest route to the beds/plants is soon utilised for entry.
Just one plant touching the fence or elsewhere is sufficient to get the nest started.


Top
 Profile  
Reply with quote  
PostPosted: Feb 3rd, '20, 14:03 
Offline
Legend Member
Legend Member
User avatar

Joined: Sep 29th, '06, 08:32
Posts: 531
Location: Riverina, NSW
Gender: Male
Are you human?: no
Location: Riverina, NSW
@dbird thanks for the tip re: ants, we used to use the method of the legs standing in water when air drying fruit. I was thinking of putting mine in one of the shallow water troughs for the time being.

@dangerous dave thanks for the additional info mate. Geez last time i was on a plane they looked funny at me when I pulled my phone out, thought the air Marshalls were gonna crash tackle me :mrgreen:. Now there is wifi :D.

I'll have a crack this week coming hopefully, but my projects do tend to take bit to get started. I assume you mean self harvest as in crawl out soft?


Top
 Profile  
Reply with quote  
PostPosted: Feb 3rd, '20, 14:17 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jun 16th, '14, 11:41
Posts: 392
Gender: Male
Are you human?: Yes
Location: Northern Rivers, NSW, Australia
Exactly. Mine have been self harvesting while still soft and therefore snapped up by the fish. But they apparently usually only do this when they're hard and ready to find a dry spot to pupate


Sent from my Pixel 3 using Tapatalk

_________________
Dave

My first system
My Murray cod system


Top
 Profile  
Reply with quote  
PostPosted: Feb 4th, '20, 04:17 
Offline
Legend Member
Legend Member
User avatar

Joined: Sep 29th, '06, 08:32
Posts: 531
Location: Riverina, NSW
Gender: Male
Are you human?: no
Location: Riverina, NSW
Maybe your on to something with the high humidity, escaping to harden?


Top
 Profile  
Reply with quote  
PostPosted: Feb 4th, '20, 09:53 
Offline
Xtreme Contributor
Xtreme Contributor
User avatar

Joined: Mar 15th, '13, 09:54
Posts: 221
Gender: Male
Are you human?: yes
Location: Townsville, Gulliver, QLD
Just thinking out loud here.
Use a black vessel containing water placed in the full sun.
This will produce a high humidity atmosphere in side that could be piped into the BSF breeding tank.
or this maybe.
https://www.harveynorman.com.au/beurer- ... ifier.html

Then experimentation to find the amount and when to apply.


Top
 Profile  
Reply with quote  
PostPosted: Feb 4th, '20, 10:05 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jun 16th, '14, 11:41
Posts: 392
Gender: Male
Are you human?: Yes
Location: Northern Rivers, NSW, Australia
I had a mate who used a humidifier, a bit like the commercial one you linked above, to control humidity in an old fridge he was using to grow his koji spores and then to make various foods (also see a recent post by Bullwinklell about Koji if interested). We rigged it up to a sensor/switch controller to keep the humidity fairly constant... it worked well. But you probably wouldn't need to have that level of control in our case.

But my high humidity was achieved simply by having enough moist food and the plastic crate being well sealed. The weather was a bit humid at the time, but nothing like FNQ!

Will be interesting to see if the new setup - with better drainage and ventilation, won't work as well (ie not produce the soft self-harvesters).

_________________
Dave

My first system
My Murray cod system


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 28 posts ]  Go to page Previous  1, 2

All times are UTC + 8 hours


Who is online

Users browsing this forum: Google Adsense [Bot] and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Powered by phpBB® Forum Software © phpBB Group
Portal by phpBB3 Portal © phpBB Türkiye
[ Time : 0.111s | 17 Queries | GZIP : Off ]