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Thread: Carnivorous Terrarium: Leaves turning red

  1. #1

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    Carnivorous Terrarium: Leaves turning red

    Hello!

    I am a new member on this forum site although I have used the resources here to build my newbie terrarium to house Heliamphora, Nepenthes, Drosera and VFT.

    This is the list of the plants I currently have in the Terrarium:

    Nepenthes ventricosa x albomarginata
    Dionaea muscipula "King Henry Flytrap"
    Dionaea muscipula "B52 x Low Giant Flytrap"
    Heliamphora heterodoxa x minor
    Dionaea muscipula "Red Dragon Flytrap"
    Dionaea muscipula "Dente Flytrap"
    Drosera spatulata
    Nepenthes x wrigleyana
    Drosera admirabilis
    Nepenthes spathulata x spectabilis
    Nepenthes singalana Belirang
    Nepenthes mira

    Here are some of the pics I have taken under grow light, so I apologize for the color rendition:





















    Here some more under just the Blue light:









    It has been a week and a half since I placed my plants in the finished Terrarium. Since then I have the leaves of my Heliamphoras and Neps turning red gradually. If you can't see them,
    do let me know and I will take better pics.

    The stats of my Terrarium is:
    Day time Temp goes from 55.4 F @ 6:10 AM to 85 F @ 8:10 PM, Humidity around 60%
    Night time Temp stays steady at 52 F ( 9:00 PM - 6:05 AM). Humidity varies between 80%-90%

    I realize that there is a mix of lowland, highland and Ultra. I am hoping the range in Temp will be okay.

    I Have Meizhi Grow light and use both red and blue light.
    The Meizhi Grow light is approximately is approximately 15"-17" above the plants.
    I have browsed through various forums and some say the leaves turning red is due to Sunburn, while others say
    that the leaves turning red is a good sign as it means the leaves are getting good sunshine.
    I also realized the water I had been spraying on them had around 240 ppm ( sprayed for 2 weeks, every 2-3 days), sadly I only found out last night when I received my TDS meter.
    I flushed out the soil immediately and managed to bring the flushed water to less than 30 ppm. I will be flushing the soil again in 2-3 days just to be on the safe side.
    I also started spraying them every night around 9 PM.

    Do let me know If I am doing anything wrong and I can always adjust the interior Temp as I am using a combination of peltier-PC liquid cooling-Heatsink and Ice Pack.

    Any help would be appreciated!
    Last edited by AaronCh; 08-15-2017 at 08:24 PM.

  2. #2

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    Can't see anything at all because of photobucket silliness. Perhaps if you link from somewhere else, or upload directly to terraforums?

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    The Dionaea would probably do better outside in full sun. You will need to take them out for dormancy in the winter.

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    Grey Moss's Avatar
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    Leaves turning red is perfectly fine as it signals that the plants are receiving adequate light. I'd echo Tanukimo's advice and remove the flytraps. They're usually incompatible with terrarium life due to the fact that they need a dormancy. Most of the plants you have are pretty forgiving so temperature is fine. In the future as you expand I'd recommend specializing in either an ultra highland or lowland tank depending on which set of conditions your environment is closer to. Grow the plants that don't need extra support outside and keep the terrarium for those that will not grow in your home conditions.

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    Fixed! Yeah, photobucket is messed up lol

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    @Tanukimo and @Grey Moss: I live in Texas and it's not gonna get significantly colder here, hence the terrarium. But I was gonna wait till October end before preparing the conditions for dormancy for the flytraps.
    Is that not okay? I apologize for not posting pics under normal lighting, will get on that tomorrow if needed.

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    Dormancy is influenced by photoperiod, possibly more than temperature. The shortening daylight hours send cues to the plants telling them to start dormancy. That's why most people recommend not growing temperates in terrariums. Recreating the changing light hours is a bit of a pain and doesn't benefit the other plants. Texas should be fine as flytraps have been successfully naturalized as far south as Florida. That being said your plants are looking pretty good, nicely set up terrarium. I'd just remove the x wrigleyana. Being in Texas your household temperatures are probably closer to what it prefers than the terrarium.

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    Quote Originally Posted by Grey Moss View Post
    Dormancy is influenced by photoperiod, possibly more than temperature. The shortening daylight hours send cues to the plants telling them to start dormancy. That's why most people recommend not growing temperates in terrariums. Recreating the changing light hours is a bit of a pain and doesn't benefit the other plants. Texas should be fine as flytraps have been successfully naturalized as far south as Florida. That being said your plants are looking pretty good, nicely set up terrarium. I'd just remove the x wrigleyana. Being in Texas your household temperatures are probably closer to what it prefers than the terrarium.
    Thanks! A lot of sleepless nights and sweat was spent building that rudimentary terrarium. But i got the temp, light and humidity down. The one question that has been bugging me forever is whether the Nepenthes and Heliamphoras can suffer from suburn or too much light from the blue and red light from the grow light even if the temperature is maintained upto 85 F (max 90 F)?

    I will be working on a cooler project geared for a lower photoperiod for the flytraps as soon as October comes around. I really appreciate all the input!

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