Backyard Aquaponics
A place to discuss aquaponics

Took care of that a week or so ago

I need to pay more attention.

Or less attention to other things.

It goes either way

Does anyone in South Australia have some kind of magic way to raise trout fry to fingerling size over summer? ie from fry to fingerling during the hotter months?

Hi Bullwinkle

I get the 2cm trout in September and they survive the summer quite fine. The tanks are shaded and if it is too hot I have a mist sprayer working as needed.

I'm just not sure if I should mention the source publically because it might just send thousands of trout to their deaths

From one of the clubs? Seen them mentioned on this forum before...

This is is slightly interesting on fish cooking temperatures from America's Test Kitchen (I binge watched years and years worth in hospital, and to this day, represents the only thing I have ever paid for online as a subscription to watch)) ...

https://www.youtube.com/watch?v=GJeWrA8j1M0

Yeah.

I'm sure they have been mentioned before, but I wasn't sure if they would want us to buy them, or if we can make the survive over summer, but it seems like it might be doable.

See Johny5' thread. He seems to be able to do it.

The South Australian Fly Fishing Association brings eggs in to rear into fry from Tasmania to stick into South Australian waterways.

Fry, not fingerlings. And it's going to be summer.

I'm not sure if they bring them in for us, but they do bring them in for people wanting to put them into their dams...



Trout fry are available for sale 10th of september if anyone wants to keep them in a fishtank inside a cool house or something.

No idea how you'd go about it, but if you can control the temperature until winter, this might be a good option for a group buy.

Rainbows - $35.00 per 100 with orders to be in multiples of 100.

For orders of 1000 fry or more a $5 per 100 fry discount will be applied.

Fry will be available for collection from the Millbrook Reservoir Hatchery on Saturday 10 September 2016 between 10:00am and 3:00pm.


The Hatchery is in Cudlee Creek South Australia (20 minutes east of Adelaide) on (whoever controls our states water system these days) land, on Tippet road just off Gorge Rd.

So from Gorge rd, heading out of Adelaide, turn left on Tippet Rd, then turn left through a gate that doesnt look like you should be able to go into, but for some reason you can on "buy trout fry day".

Your trout fry WILL die over summer unless you have some kind of new idea or something, so if you think this might be for you, it probably isnt.





These things are fry not fingerlings!


READ THAT LAST LINE AGAIN!

AND IT"S ABOUT TO BE SUMMER.

SUMMER BAD!


Tiny little things that wont last the summer in any kind of conventional aquaponics system


REALLY THIS IS NOT SOMETHING YOU SHOULD DO!


READ THAT LAST LINE AGAIN!

It would be a total waste of life unless you have some kind of sophisticated refrigeration system or something


Let me know if you think I need to add some extra kind of warning or something.


This message brought to you by the department of "I have no idea if this is useful to anyone, but someone will probably find a way"

But Johny5 can do it in adelaide so it is doable. People are clever.

I have found the "Fry" do not seem to be bothered by the heat. Presumable their oxygen requirements can still be met by the warmer water. I have had temps up to 26c with none of them suffering. Now if you forget to cover your tanks with netting on the other hand they will suicide. Probable not intentionally but the end result is the same.

Do trout do the swimming upstream like salmon? Perhaps that could explain their suicidal tendencies.

I only run 500L of water at the moment, with a 500L growbed.

The result is summer temperatures that from memory got to around 34c, which I think might be too hot.

They just swim faster than they think and over shoot the tank. Silly buggers. Yep 34c will kill them.

This is an interesting video on cucumber tendrils that's made even more interesting if you're currently learning how to make natural rope.

Which I am.

So I find this more interesting.

https://www.youtube.com/watch?v=Vbzgv5iKEyY

Johny5, that sprig of mint I nabbed is already showing super (normal mint) qualities.

I suspect [insert American multinational agrochemical and agricultural biotechnology corporation that starts with an "M" and rhymes with bonsanto] built my existing mint variety from scratch, so that it depends on every chemical known to humanity to keep it alive.

Who knew growing mint could be difficult.

Just like the rhubarb it is a plant and forget item for us no work involved except harvesting.

I hope you enjoy it.

I just the result of some very slightly interesting science.

Last year I had yabbies with babies. They hatched and ate each other (there is just one last baby left that is now around 8cm long), and the half dozen adults that I had all ate each other as well.

Except two.

In an ethically questionable attempt (see battery hens) to save the last two until the next breeding season where It might be safe to try again with a better setup, I made two gutter guard cages for them to spend winter in (gutter guard is a plastic mesh with around 1cm square holes to keep leaves out of your gutters). The cages had a stack of weed pressing up against them, and they got flake fish food and all the water snails and baby goldfish they could eat.

I hung the cages into the fishtank so they touched each other, but so they couldn't eat each other if one of them shed it's skin.

I put them next to each other in the slight hope that they might mate through the gutter guard.

Today I found a tiny baby yabby in the weed in the fish tank! I'm guessing it's body length is around 6mm so it cant be more than a few weeks since it left it's mother.

I checked for eggs every month or so, but must have missed them.

The point of all this, is that it might be possible to safely selectively breed prized (fast growing or whatever) yabbies without risking their lives.


Cage mating.