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Hc?

Discussion in 'General Plant Topics' started by ccLansman, Aug 7, 2008.

  1. ccLansman

    ccLansman Guru Class Expert

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    Was wondering if it was ok to float hc on the top of my tank so that it grows more vigorously? Anyone tried doing it this way? I figured this way it was getting high light and has access to co2 in the air and the tank, and will help promote good root growth.
     
  2. Gerryd

    Gerryd Plant Guru Team
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    This will work well for a lot of plants...............

    I know there is at least one big thread where folks are using containers on the surface to do this...............
     
  3. ccLansman

    ccLansman Guru Class Expert

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    well are you talking fully emersed or just floating around inside there tank that is still full of water?
     
  4. Gerryd

    Gerryd Plant Guru Team
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    Yes they are floating in a tank of water. Your question WAS about floating HC, no????
     
  5. phanmc

    phanmc Lifetime Charter Member
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    My first experience with HC was from a seller who grew most of his HC floating.
     
  6. Generals

    Generals Prolific Poster

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    guys, when you trim HC, and plant the trimmings in the substrate of an emersed tank, will it survive and grow?
     
  7. Generals

    Generals Prolific Poster

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    i recently planted mine emersed in my fish tank...
    havent tried it floating though..
    im also new to the planted tank thing...

    maybe the more experienced folks here can share some experiences and tips...
     
  8. VaughnH

    VaughnH Lifetime Charter Member
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    On another forum one person said they "plant" HC by just tossing the pieces onto the wet substrate to grow them emersed. I tried this with glosso, and it worked for that. If you are trying to grow HC emersed, and do a trim, just leaving the cuttings where they fall could result in them taking root right there.
     
  9. ccLansman

    ccLansman Guru Class Expert

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    i have heard this on other forums and want to know its validity and what the deal is, goes something like this.. "i grew my hc emersed but when i filled the tank with water it melted."

    What is the deal with swapping from air to water and does it actually melt every time or only some times?
     
  10. Generals

    Generals Prolific Poster

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    oh really?! wow... that sounds too convenient!=) hehehe
    well it worked for your glosso, it must work for HC hopefully.....
    thanks...
     
  11. Generals

    Generals Prolific Poster

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    well.... i have practically no experience in this since im just starting out, but ive read a lot that if you overdose co2 after flooding (without fishes of course), the leaves won't melt

    but i think we have to ask the more experienced aquascapers here=)
     
  12. digiSalero

    digiSalero Junior Poster

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    Seems to me like the only difference between going from emmersed HC to submerged HC is the exchange of CO2. Emmersed HC gets it's CO2 from the surrounding air. Submerged HC gets it from the water. If the HC is having trouble taking in the CO2 in the water, my guess is that it would have some trouble maintaining it's emmersed form and may "melt" away.

    I would say increase your CO2/water circulation.
     
  13. custom240g

    custom240g Junior Poster

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    I do it all the time, as long as the trimming have a root or two they should survive. From my experiences the more i trim my hc the better it spreads
     
  14. Tom Barr

    Tom Barr Founder
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    Well, here is the answer about HC going from Emergent to submersed:

    4 weeks after:
    resizedHcweek4.jpg

    1 week after flooding:
    leftside180week1.jpg

    Day of flooding:
    longshotafterfillingHC.jpg

    1 Week before flooding:

    resizedHCweek7.jpg

    This definitely shows there's some other issues with the melting other than transition from emergent to submersed culture.

    That was one of the criticisms that where levels against my initial promotion of the DSM, and some theories I'd mentioned prior. Rather than arguing with these clowns, I went the other way and did a simple test to show it worked.

    But now I know what the main issue was in order to apply the theory.
    It's mostly gas exchange. Which is what I've said for some years.

    If anything, the plant's growth rate accelerated, due to water column uptake of nutrients and less support, more buoyancy. This allows more light to penetrate the mat and makes it fuller/fluffier.

    This as well as many other folks, (so it's not just me, or that I'm somehow "special") suggest that it cannot be due to submersion, the melting is very likely due to poor CO2.

    It is a very easy plant to work with as it is very easy to grow large amounts in hydroponic like culture like I detailed in this tank above. So you can grow plenty of it and torture and test all sorts of treatments.

    This DSM makes it very easy to grow.
    It will never save you from poor CO2 or poor aquatic conditions however........

    Regards,
    Tom Barr

    Regards,
    Tom Barr
     

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