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PostPosted: Nov 15th, '15, 10:25 
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Thanks for the comments.
For about three weeks as the weather warmed up the trout only fed in the cool of the mornings & I guess their growth rates would have slowed considerably too. I'm still happy with the results. The conversion rate is way higher than for Silver Perch & Trout are by far a much better tasting fish. I'll look forward to another batch next year.
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PostPosted: Dec 28th, '15, 20:41 
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Only the second hottest place in the world today ?? :think:
Geraldton :shifty:
http://www.eldoradocountyweather.com/climate/world-extremes/world-temp-rainfall-extremes.php
My system lost over 200L for the day.
I was working diving & had a wetsuit on for a lot of the time & became very dehydrated & a bit sun burned.
Kicking back now with a beer in the air con

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PostPosted: Dec 28th, '15, 20:50 
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Only forth in Aus yesterday
http://www.bom.gov.au/cgi-bin/climate/extremes/daily_extremes.cgi

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PostPosted: Jan 12th, '16, 11:51 
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So 2016 started of well with plenty of celebrations & good a time with friends, but it quickly turned bad. I spent the night at a mates place bring in the new year & made it home the next day, still feeling quite drunk & in need of a sleep, I checked the AP system before getting a good nights sleep. The next day I went to check the system & every thing seemed fine until I lifted the cover on the big tank. Then I was confronted with the sight of floating fish, with further inspection there was fish dead on the bottom too. 97 Silver perch dead ! :upset:
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New years day was 44*c
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The power must have gone out with in the last 24 hours witch was Ok as I have back up air supply. But when the power came back on one of the pumps had jammed. When I picked up the offending pump what ever it was jammed up with came fee & the pump started. The hidden cost of cheep pumps. :dontknow:
I scooped all the fish out then went to the fish market down the road grabbed some bags of ice made up a slurry in a 90L esky & chilled most of the fish down. A few hours later a couple of my mates came over & gave me a hand to process them. Most of the smaller fish we scaled, head & gutted, the larger ones we fileted. We put some of the fillets strait into the smoker the rest were put into vac-pack bags for storage some of these we added sauce's to before sealing. When everything was cleaned up we had a grate feed of smoked Silver Perch.
So its time to get some new stock. :wave1:

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PostPosted: Jan 12th, '16, 12:07 
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Quite a haul :thumbright: . Good illustration of why you want a pump that can handle solids though. Glad you managed to get them in time GTK :headbang: .


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PostPosted: Jan 12th, '16, 22:46 
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Thanks scotty435
Yes with pumps you get what you pay for ! :dontknow:
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What I was really interested in was the fact that the biggest SP was full of roe. It weighed in @ 750g,which was a fare bit less than what I estimated. But makes me think that maybe they could breed in a 3000L tank, or do they just come into roe & just get rid of the eggs ?
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PostPosted: Jan 13th, '16, 09:52 
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I'm not sure with your fish but with yellow perch I've read that they can reabsorb the egg mass.


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PostPosted: Feb 1st, '16, 22:58 
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After the loss of all the Silver Perch the 3000L FT started to accumulate a lot of algae , so in an attempt to clear the algae up I have begun to lightly stock the tank again. Keeping just enough fish to maintain the balance in the system {maintenance mode}, till winter when I can restock with Trout.
Trying to keep cost down I'm stocking fish from local waterways. It was also a good excuse to take my two young son's camping for the last week of the school holidays, we free camped along some of the rivers between Geraldton & Perth. It was great to get back to nature, something when my friends & I were kids did quit often & kids these days don't do enough of. The boy's enjoyed the mission & we caught a few spices: Yabbies, Swordtails, Freshwater mussels, Glass shrimp & Freshwater cobbler.
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The Yabbies I've added to the tank have eaten a lot of the algae already or at least cut it down & got it to move.
The Glass Shrimp are very interesting from the research I have done they will readily breed in tanks and are good feed for other fish. So I will try to breed them in a separate tank & when the numbers harvest for feed.
Attachment:
File comment: One that didn't make the 30 min drive home
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Then last weekend 30 juvenile Silver Perch were added, these were from Chapman Valley fish farm and were some of the remnants of last years hatchings( mostly runts & not in very good condition, I think a few of the slower ones were consumed by the yabbies :dontknow: ) @ $2 each it's no big loss.
So things are back on track. :whistle:
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PostPosted: Feb 2nd, '16, 01:14 
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Well you made lemonade out of lemons quite nicely. Camping and fishing with the kids sounds fantastic

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PostPosted: Feb 2nd, '16, 16:59 
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Yes Boss :think: No point crying over dead fish !
Unfortunately the local governments & private land owners are making it harder to access the rivers in our Australian bush, free camping is becoming a thing of the past except in remote areas. :cry:
Such is Life !

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PostPosted: Feb 2nd, '16, 17:35 
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Nice haul you got on your camping trip gtk. I know there are freshwater mussels in our local river because I find the old bleached shells, but I've never seen a live one. Did you usually find them in a particular place like buried in sand or in the reeds ? Shallow or deep water ? Cheers.

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PostPosted: Feb 3rd, '16, 20:41 
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Gday Rendang :wave1: Yes the mussels are hard to get a visual on as they sit in the shadows, head [tongue] down - bum up {hinge side} just above the substrate. I found these in the mud close to the bank, under the vegetation, in the slower part of the steam. Once you find one feel around in the mud & others will be there.
Good luck :thumbleft:

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PostPosted: Feb 8th, '16, 18:35 
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Thanks, I will look a bit more carefully and hopefully find some live ones. Cheers.

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PostPosted: Mar 6th, '16, 17:47 
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Back in April last year I placed 30+ Juvenile yabbies into a IBC with a DWC raft on it.
http://www.backyardaquaponics.com/forum/viewtopic.php?f=45&t=23159&start=30
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Over 11 months this system has produced plenty of tomatoes & salad greens. After the heat of the summer months I have harvested all the salad greens in the raft allowing me to remove it to clean the IBC out ready for Autumn planting.
After removing the plastic/prawn mesh and hides, I caught the yabbies that were left.
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About 50% attrition, with 17 yabbies left, 11 males & 6 females. 4 of the smaller females were in berry which shows good fecundity as these were juveniles from last years brood. The males were put in the main tank & a couple of the berry females were placed in brood chambers in separate tanks. The rest went back into the DWC tank with a large male.
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Surprisingly the bottom of the IBC had very little rubbish in it except some of the grow media that had fallen in from the raft. When I scooped this out I discovered some small juveniles.
Attachment:
Yabby Juv.JPG
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I'm thinking these may have been from one of the larger females that bred earlier ?
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PostPosted: Mar 14th, '16, 20:46 
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Hey GTK

Did you catch many yabbies? Where abouts did you go?

Where abouts are you in Gero?

Dan


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