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Rotala Macandera

Discussion in 'CO2 Enrichment' started by PhillyB, May 8, 2008.

  1. PhillyB

    PhillyB Prolific Poster

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    All,

    I have some rotala macrandra which is a nice green color and seems very healthy. My understanding is that when healthy this plant will be red. So, I am trying to figure out what I am doing wrong here... I suspect it might be a low amount of available magnesium and calcium? Possibly Micros?

    I have a 29 gallon using excel dosing. 1x a week I dose 1/4 tsp. of Magnesium Sulfate and 1/2 tsp of Calcium Sulfate w/ 10ml of TMP micros.

    All the plants look healthy and have a nice color. If the rotala is not red, is that an indicator that it is not healthy?

    Thanks,
    John
     
  2. shane

    shane Lifetime Charter Member
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    I believe there is a green variety of rotala macandra as well. Perhaps you have the green variety?
     
  3. PhillyB

    PhillyB Prolific Poster

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    I was not aware. I'll take a picture and post it. Do they look pretty different?

    When I bought it, it was red in color. It was not in good shape, pretty ratty looking. Maybe the green variety turns red when it is not healthy?
     
  4. Gerryd

    Gerryd Plant Guru Team
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    Hi,

    Red plants need more light, esp this species.

    What type, intensity, and duration of lighting do you have?
     
  5. PhillyB

    PhillyB Prolific Poster

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    Coralife power compact 10,000. 65 watts over 29 gallons. 8 hour photo-period.
     
  6. Gerryd

    Gerryd Plant Guru Team
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    Your lighting seems fine.

    Since you are dosing excel mostly, it could be lack of c02 and nutrients like N and K. Your light is >2wpg and a 29 gallon is not that deep.

    So, I think the good light is driving a need for more nutes. Not available, light causes growth (lengthwise towards the light), but color is not as 'normal'.

    I am sure others with more knowledge will chime in.

    Hope this helps.
     
  7. jsrevenaugh

    jsrevenaugh Junior Poster

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    Red macranda

    I've read here and in other forums that Macrandera grows more red in low nitrate conditions (not limiting, just low).
     
  8. Tom Barr

    Tom Barr Founder
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    I've never had troubles at high levels of NO3.
    But I use less light.

    Regards,
    Tom Barr
     
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