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neilneilsen
 Post subject: fish to plant ratio
PostPosted: Sep 5th, '06, 07:27 
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hi there,
Im currently planning on making a short documentary and wanted to make a small aquaponic setup as part of the show, i need them to be relatively small to be viable for my purposes. how many fish (im planning on using goldfish) would it take to grow one plant?
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aquamad
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PostPosted: Sep 5th, '06, 07:32 
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depends, how big will the tank be and how big will its 'growbed' be?
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aquamad
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PostPosted: Sep 5th, '06, 07:35 
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and another question, what kind of ' plant ' do you intend to use?... different plants feed off of the nutrients differently (heavy and light feeding plants)
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Aquaddict
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PostPosted: Sep 5th, '06, 13:16 
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A fish to plant ratio.

1 Kilo fish needs 50 litres bed. - 1:50, bed depth 300mm.
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neilneilsen
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PostPosted: Sep 5th, '06, 15:39 
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thanks for your feedback.
i was hoping for a small herb garden, and i wouldnt want to go over a 20 liter tank...
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neilneilsen
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PostPosted: Sep 6th, '06, 04:50 
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alright my reply seems a little vague, if i had say 6 goldfish in a 12 litre fish tank, could i grow a parsley? could you please also give me some examples of light feeding plants?
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Aquaddict
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PostPosted: Sep 6th, '06, 06:03 
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Number of fish is too varied, use weight of fish, (approximate).

Let's take this over to the herb garden thread, and see what room you've got, and what you hope to do with it.

12 litres is small for 1 goldfish, let alone 6. Sure we can come up with something but I won't show you how to do Aquaponics in a goldfish bowl, it's inhumane.
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neilneilsen
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PostPosted: Sep 6th, '06, 06:13 
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oops didnt mean 12 litres sorry, i'm now looking for a 100 litre tank lol. iv been reading around and asking people and im feeling more confident.
a goldfish would be around 500 grams that right? so by simple mathematics id be looking at 3kg of fish.. does that sound right?
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steve
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PostPosted: Sep 6th, '06, 07:42 
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100lt sounds do-able :)

a 500gm gold fish would be huge! thats half a kilo :shock: plate size for perch is about 700g isn't it guys?
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aquamad
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PostPosted: Sep 6th, '06, 08:06 
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heck, you could always eat it if you were having a tight and rough month ;)
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neilneilsen
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PostPosted: Sep 6th, '06, 09:43 
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hm maybe i weighed smally here wrong :?
is there such a thing as goldfish scales?
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Aquaddict
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PostPosted: Sep 6th, '06, 10:28 
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rofl!
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steve
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PostPosted: Sep 6th, '06, 12:04 
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maybe you meant 50 grams?
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Aquaddict
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PostPosted: Sep 6th, '06, 12:18 
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neilneilsen wrote:
is there such a thing as goldfish scales?
:wink:

C'mon, you missed that Steve!

I have 500 gram(ish) goldfish and yes they're big.

I use the pound of butter and sardines method. Imagine your fish all packed together like sardines, how close to a pound (500 grams) of butter is that.
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Mandurahguy
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PostPosted: Oct 11th, '06, 21:00 
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Goldfish get very stressed if you show them a tin of sardines...........LOL
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