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

Troubles with Rotala Rotundifolia and Pogostemon Erectus

Discussion in 'General Plant Topics' started by Oana Mirela Rusu, Feb 6, 2016.

  1. Oana Mirela Rusu

    Oana Mirela Rusu Junior Poster

    Joined:
    Feb 6, 2016
    Messages:
    2
    Likes Received:
    0
    Local Time:
    3:48 AM
    Hello,


    I have a 47g planted tank, it's been set up for about 6 weeks. Things are growing reasonably well, but I'm unhappy with the way my rotala rotundifolia (I hope I got the name right) and pogostemon erectus are developing. Rotala looks like its trying to make lots of new shoots but they are all stunted. Pogostemons just have stunted growth.


    About the tank: I have pressurised CO2 running at 1-2 bubbles per second, I've had it on a timer, stopping it at night till 2 days ago, when I was advised to not turn it off as it causes ph swings. I'm dosing fertilizers from a brand called Vimi according to EI dosing, I'll post their composition at the end (numbers are in ppm, as the producer says on their site) The lights are from an LED lamp of 90watts (it has 6500K leds, 4000k leds, 2 red leds and 4 blue ones) but only keeping it at @60%, which should be @7000 lumens. I know lumens are bad for telling light for plants, but I have no way of getting a PAR meter for those readings. The water in my area is fairly hard (kH test tells me 11-12, ph is @7.5 in my tank with the co2). [TABLE=border: 1, cellpadding: 0, cellspacing: 0]


    [TR]


    [TD]K[/TD]


    [TD]23000[/TD]


    [/TR]


    [TR]


    [TD]N[/TD]


    [TD]3470[/TD]


    [/TR]


    [TR]


    [TD]P[/TD]


    [TD]1000[/TD]


    [/TR]


    [TR]


    [TD]Fe[/TD]


    [TD]1800[/TD]


    [/TR]


    [TR]


    [TD]Mg[/TD]


    [TD]625[/TD]


    [/TR]


    [TR]


    [TD]Mn[/TD]


    [TD]375[/TD]


    [/TR]


    [TR]


    [TD]B[/TD]


    [TD]175[/TD]


    [/TR]


    [TR]


    [TD]Zn[/TD]


    [TD]37,5[/TD]


    [/TR]


    [TR]


    [TD]Cu[/TD]


    [TD]37,5[/TD]


    [/TR]


    [TR]


    [TD]Mo[/TD]


    [TD]12,5[/TD]


    [/TR]


    [TR]


    [TD]Co[/TD]


    [TD]3,75[/TD]


    [/TR]


    [TR]


    [TD]Ni[/TD]


    [TD]1,25[/TD]


    [/TR]


    [/TABLE]


    Here are some images of my tank with the plants in question:


    http://i.imgur.com/nEA29jz.jpg


    http://i.imgur.com/54aJF8B.jpg
     
    #1 Oana Mirela Rusu, Feb 6, 2016
    Last edited by a moderator: Feb 6, 2016
  2. PhilipS

    PhilipS Lifetime Members
    Lifetime Member

    Joined:
    May 10, 2014
    Messages:
    254
    Likes Received:
    23
    Local Time:
    8:48 PM
    Are you using any root tabs in the gravel? If not, add some.


    Soil feeds the roots, Diluted ferts feed the Plant body. It's 2 fold. Not saying you cannot have healthy plants in gravel.


    Looks like you have some Marsilea growing in the gravel.


    Not enough light down there. Thin out the floaters or contain them elsewhere with a floating ring of black airline or such.


    The Rotala are growing fine. Be happy that they are not growing fast.


    Not all plants will be happy in every tank.
     
  3. Pikez

    Pikez Rotala Killer!
    Staff Member Moderator

    Joined:
    May 12, 2013
    Messages:
    1,962
    Likes Received:
    1,473
    Local Time:
    3:48 AM
    Reduce light to 40%.


    Change water more often.


    Reduce trace element dosage.


    Increase CO2 to 2-3 bubbles per second.
     
  4. Oana Mirela Rusu

    Oana Mirela Rusu Junior Poster

    Joined:
    Feb 6, 2016
    Messages:
    2
    Likes Received:
    0
    Local Time:
    3:48 AM
    Regarding root tabs - I don't use them but the tank has fertile substrate under the volcanic gravel. It's something from Tropica - http://tropica.com/en/plant-care/substrate/. Tank is barely 6 weeks old, so that substrate is definitely not depleted.


    I'm not concerned about the speed of growing, but about it's shape. When I bought them they had a nice rosy tint to leaves and generally properly sized leaves.


    Regarding light, I'm confused. Some people tell me it's too much, others it's too low :S .


    I'll try the reducing fertilizing and increasing my co2. I'm just wary about leaving co2 that high during the night - and again I'm confused if it's better to shut it off at night or not. Some people say shutting it during the night will cause ph swings, and on the other hand having it at 2-3 bbps is worrying during night time.
     
Loading...

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.
    Dismiss Notice