This site is supported by the advertisements on it, please disable your AdBlocker so we can continue to provide you with the quality content you expect.
  1. We are after as many aquarium plant images that we can get, doing so will assist us in completing the aquarium plant database.

    https://barrreport.com/threads/aquatic-plant-images-wanted.14374/
    Dismiss Notice

A new test?

Discussion in 'Advanced Strategies and Fertilization' started by cousinkenni, Apr 5, 2007.

  1. cousinkenni

    cousinkenni Prolific Poster

    Joined:
    May 18, 2005
    Messages:
    60
    Likes Received:
    0
    Local Time:
    1:22 PM
    Hi Tom and others,

    I did a search, but couldn't find the answer to this question. Maybe it has been talked about and I have just forgotten......

    What happens to plants when there is too much CO2 in the water? Say double to triple the recomended amount 60-90pm. With the advent of the 4/5dKH drop checker method we should be able to easily target these amounts.

    Have you done this experiment for an extened period Say 1-2 weeks? I remember reading several times that CO2 over 30ppm doesn't improve plant growth but will too much CO2 (lets say the ranges mentioned above) actually hinder plant growth/hurt the plants?

    For all intents and purpose lets make this a fish free tank so as to not upset animal lovers with the thought of killing the fish.

    Thanks for any insight,

    Ken T.
     
    #1 cousinkenni, Apr 5, 2007
  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Joined:
    Jan 23, 2005
    Messages:
    18,694
    Likes Received:
    728
    Local Time:
    1:22 PM
    If you remove the fish etc, then adding a lot more than 30ppm is not going to increase plant growth, even at high light levels, which can also reduce CO2 uptake if excessive(seldom the case for us, even with 1000w MH's: 800micromol vs 2000 (full sun).

    Some plants might do better etc but most should be fine.
    We generally add more till no new increase in growth rate is noted.
    You need non limiting conditions for the other parameters.

    I think you might be able to hinder plant growth at extremely levels, 500ppm etc.

    An interesting tidbit is the resistance to diffusion of CO2, this goes back to the CO2 mist issue.

    You can increase the CO2 delivery to a submersed plant without having to dissolve the CO2, leaving it instead in the gas phase where it can break through the leaf's boundary layer and supply higher concentrations rapidly to the plant.


    Regards,
    Tom Barr
     
    #2 Tom Barr, Apr 5, 2007
(You must log in or sign up to post here.)
Loading...
Similar Threads - test
  1. Mikymn

    Anyone Here Have Any Tests On Biohome?

    Mikymn, Jan 15, 2021 at 10:24 PM, in forum: General Plant Topics
    Replies:
    3
    Views:
    91
    Mikymn
    Jan 16, 2021 at 10:16 AM
  2. nanomania

    Potassium And Magnesium Marine Test Kits For Fw Planted?

    nanomania, Nov 2, 2020, in forum: Aquatic Plant Fertilization
    Replies:
    1
    Views:
    157
    nanomania
    Nov 2, 2020
  3. fmueller

    Water Testing Equipment

    fmueller, Aug 31, 2020, in forum: CO2 Enrichment
    Replies:
    2
    Views:
    222
    fmueller
    Sep 6, 2020
  4. Kyle Bausch

    New To Planted, Testing For Kh?

    Kyle Bausch, May 8, 2019, in forum: Are you new to aquatic plants? Start here
    Replies:
    9
    Views:
    1,434
    Devisissy
    Oct 21, 2019
  5. shoggoth43

    Recommended Test Kits

    shoggoth43, Apr 21, 2019, in forum: General Plant Topics
    Replies:
    2
    Views:
    736
    shoggoth43
    Apr 27, 2019

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice