Changing Substrate?

Discussion in 'Freshwater Substrates - Gravel, Sand' started by bobbyta74, Feb 22, 2019.

  1. bobbyta74

    bobbyta74Valued MemberMember

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    I want to have corydoras in my 63 gallon, but do I really have to change the substrate from gravel to sand? Could I just add a small patch if they absolutely HAVE to forage in it?

    @Thunder_o_b Could you send me the photos of cories on gravel? I can't seem to be able to view them.
     
    Last edited: Feb 22, 2019
  2. 86 ssinit

    86 ssinitFishlore VIPMember

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    ED1F0EF6-7C9E-4C6B-BFCC-707DF3FF96DF. All my Cory’s are on gravel
     
  3. DoubleDutch

    DoubleDutchFishlore LegendMember

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    Coukd you place a pic of your tank / substrate. There is gravel and gravel
     
  4. Thunder_o_b

    Thunder_o_bFishlore VIPMember

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    If you can not see these let me know.

    1.
    _MG_8646 copy.

    2.
    _MG_4748.0.

    3.
    _MG_4614 copy 7.39.45 PM.0.

    4.
    _MG_7399-Edit.0.

    5.
    _MG_4529 copy.0.
     
  5. Platylover

    PlatyloverFishlore VIPMember

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    You can, but the gravel needs to not be sharp. It’s typically best to have something similar to what thunder has, which is more so large pebbles.
     
  6. DoubleDutch

    DoubleDutchFishlore LegendMember

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    Uhhhh in my opinion thr large pebbles often are culprit of issues with Corydoras.

    I don't have a sand-fetish though, have one tank with gravel + corys but noticed the pebble-substrate is often in cases of barblleloss which made me suspect food gets out of reach, starts rotting and are a cause of bad waterconditions / bacterial growth causing these issues.

    So cursing in the church : I expect smaller gravel (even a bit sharp) to cause less issues than the rounded bigger sized gravel.

    Look at the substrate of Thunder : it is soooooo clean hahahaha. But especially the C.trilineatus is on gravel of which I think in normal conditions is too big for these fish (sorry Thunder)
     
  7. Platylover

    PlatyloverFishlore VIPMember

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    Really? I’ve never viewed that as an issue I suppose, but then again I’m not a fan of gravel in general so I haven’t had any in years. This is why I prefer sand, you don’t have to worry near as much about all this lol. Well, I trust the guy who’s kept and bred cories for years.
     
  8. DoubleDutch

    DoubleDutchFishlore LegendMember

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    Small detail : I don't have scientific proof so it is an experience (based in hundreds of threads worldwide) an a suspecion that made that arrise. Sort of one and one is two.
     
  9. OP
    OP
    bobbyta74

    bobbyta74Valued MemberMember

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    OMG! Such an honour to have you all reply to me! Anyways, back to the point - here is my gravel (excuse the algae):

    Is it visible enough?

    The size is 3-5mm.
     

    Attached Files:

  10. 86 ssinit

    86 ssinitFishlore VIPMember

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    That’s the same stuff I use. It’s fine Cory’s will be fine .
     
  11. Thunder_o_b

    Thunder_o_bFishlore VIPMember

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    No problem here. I switched to all Sand a while ago
     
  12. OP
    OP
    bobbyta74

    bobbyta74Valued MemberMember

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    Yes! That will spare me so much time! Thank you all for chiming in!
     
  13. Erin Busch

    Erin BuschNew MemberMember

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    I have eco complete pooriss gravel with my Cory's and they do excellent
     








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