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Posts posted by pim

  1. Hi, 

    I am in the middle of setting up a new terrarium (800mm wide, 600mm deep and 1000mm high, although a lot of height will be used for the water reservoir and high pots, so substrate level will be around 600mm under the LEDs). The walls will hold epiphytic plants, so thats why the tank is rather tall.

    For lighting I am leaning towards 4 to 6 50W LEDs (most likely CREE CXB3590 or something similar,  maybe in combination with lenses). Heat sinks will be outside the main body of the tank, But I am worrying about the downward heat output of the LEDs, since most of the plant require highland conditions. I was hoping to keep the cooling of the tank mainly a night thing, so if anyone has experienced that these LEDs put out a lot of heat, I might have to find a different solution.

    Thanks in advance for your experiences, tips and whatnot!

  2. Hi,


    Recently I moved a large number of my plants into a grow tent on my basement. Most of them Heliamphora's, Drosera's and Utricularia's. Most of them have been growing quite nicely outside during summer (partly shaded during the brightest parts of the day), others were in a non-heated mini-terrarium.


    So, about a month ago they were transported into the basement for the obvious reasons of having a constant drop in the temperatures during the night, when the lights are off.

    The grow tent has 4 x 24W T5HO lights (2 x 865, 2 x 840), about 50 or 60 cm above the substrate. This also gives a rise in temperatures to about 26°C, with a drop in during the night to 16°-17°C, during summer, a bit lower during winter.

    Humidity is not measured, but really high. Most plants are colouring like crazy. The drosera's are red-maroon, with lots of dew. The Heliamphora's aren't complaining either. The Utricularia's however, are wilting (quelchii, jamesoniana, reniformis, campbelliana). I allready moved the U. longifolia in the least brightest part of the tent, because the leaves were yellowing en drying at the ends. Since then the longifolia is looking better, but it's the other ones that really concern me.


    Are the T5HO's too powerful? (I used these above aquaria, which generaly use more powerful lighting) or are the plants just getting used to different conditions?


    Thanks in advance!