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 Post subject: The addiction continues
PostPosted: Apr 23rd, '17, 19:40 
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Bordering on Legend
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Location: Blue Mountains, NSW, Australia
In preparation for the new house to be built I have started throwing together numbers for the new system.

At this stage the dream would be to have a system I can pull 2 fish out of around once a week, with some left over for friends and family.

I hoping the below would allow me to stock approximately 200 fish a year made up of 100 silver perch and 100 rainbow trout.

My experience so far is that I can grow the trout from April/May through to around November, at which stage they are plate sized.

The silver perch will be in the system year round. I'm hoping add 100 each year. The silver perch take around 2 years to get to plate size in my climate.

For the tanks I am thinking of putting in a 5000l water tank cut in half for 2, 2500l fish tanks.

For grow beds I'm thinking of making up 4 media beds 1m wide x 4m long x 40cm high, and 4 raft beds the same as above but only 60cm wide. The beds will be similar construction to columns.

The above should give me around 4800l of media depending on how high I fill the beds.

I will more then likely run a radial flow, static up flow and bio filter but excluding those, I'm looking for feed back on if the above will support the fish load.


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PostPosted: Feb 18th, '18, 16:36 
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Bordering on Legend
Bordering on Legend

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Location: Blue Mountains, NSW, Australia
Looking for feed back on some numbers

4x ibc fish tanks
11x 300l ibc growbeds
1x rff
1x mbbf with 100l of k1

Im hoping to run 30-40 fish in each ibc to 500g.

Fish load across the whole system is unlickly to be at max as each tank will have fish of diferent ages. E.g. trout in 2 through winter silver perch in the other 2 the whole time.

Once a suitable rainwater tank comes available i am planning on swapping 2 of the ibc for it.

Sound reasonable or pushing the limits?

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PostPosted: Feb 18th, '18, 17:17 
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In need of a life
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>> For the tanks I am thinking of putting in a 5000l water tank cut in half for 2, 2500l fish tanks.

great idea.... that will be very good for the fish numbers you are talking.

>> Im hoping to run 30-40 fish in each ibc to 500g.

that is pushing the limit IMO. Higher risk setup. Prefer your circular tank.
If you want to grow fish at this level then you have to move on from IBC FT's IMO.
Larger diameter circular tanks offer much better environments than any IBC (which are tall and deep)

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Darren ( dlf_perth )

May the fish sh*t and the plants grow.....


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PostPosted: Feb 18th, '18, 17:34 
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Bordering on Legend
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Location: Blue Mountains, NSW, Australia
Totally agree dlf_perth i have been looking for a suitable tank for the last 12 month just nothing in the price range has come up.

At my previous place i was able to run 60 trout split between 2 ibcs with 3 grow beds and the bio filter. 1x 450l and 2x 300l. Trout came out at around the 600-800g mark at the end of the season.

Hopefully something will come up in my searches. If not i will swap out the ibcs when i find something. Will just make sure i leave the room for the tanks.

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