how many cardinal tetras

Discussion in 'Fish' started by eddyboy, 19 Jan 2010.

  1. eddyboy

    eddyboy Member

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    Hi guys just wanted some advice about how many cardinals would look good in my 350l tank. The tank is 4ft x 2ft x 2ft. I already have 12 cardinals,a pair of blue rams, 5 ottos, about 9 shrimp and 10 pygmy corysdoras. The tank looks abit on the empty side and needs some more fish. It is filtered by 3x external filters,reana xp3, tetra tec 700 and 600.

    cheers

    eddy
     
  2. Themuleous

    Themuleous Member

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    Humm if it were my tank I put in 60-70 if not a few more. I've had 45ish cherry barbs in my 250lt and it was by no means 'full'

    Sam
     
  3. chris1004

    chris1004 Member

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    Hi,

    The more the merrier within reason. I have a shoal of about 50 in a 250L and there by no means crowded. In fact i'm certain they love the security safety in numbers brings.

    Regards Chris.
     
  4. eddyboy

    eddyboy Member

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    so looks like I got room to up the numbers a fair bit. Thanks for your help :)
     
  5. Ben M

    Ben M Member

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    agreed, the bigger the shoal the more impressive it looks :D
     
  6. mlgt

    mlgt Member

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    Do post pics when you get the extra fish.

    Ive got around 40 in my 180l tank and they look lovely especially during feeding time.

    Its a frenzy!
     
  7. eddyboy

    eddyboy Member

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    will post pics when I can afford to get more cardinals. Has any one ever bought fish from ebay? Found some one selling cardinals for about £22 for 20, the cheapest I have found. Never done the mail order fish thing.
     
  8. Ben M

    Ben M Member

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    i have never bought fish off the internet. but that is definitely a good price. my lfs sells them at £2 each. :D
     
  9. Nick16

    Nick16 Member

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    surely a 4x2x2 tank works out about 430-450L?
     
  10. Celestial

    Celestial Member

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    432 Litres when full to the brim to be precise :)
     
  11. Nick16

    Nick16 Member

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    now do the same calculation using feet rather than cm's for the measurements. it comes to nearer 450L for some reason. even though 60cm is very nearly 2ft!
     
  12. aaronnorth

    aaronnorth Member

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    because there is a slight difference, you are using rounded numbers, to be precise, 1ft isnt exactly 30cm, it is 30.48

    cm = (120 x 60 x 60) / 1000 = 432l

    feet (but convereted to cm) = (121.92 x 60.96 x 60.96) /1000 = 453l

    You wouldnt think it would make that much difference though!
     

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