Orchid Vivarium Setup: Lighting and Humidity for Masdevallia

Building a 10-Gallon Hexagon Vivarium for Masdevallia

Rich plans a ~10 gallon hex vivarium for Masdevallia, specifically Howeara Lava Burst. Asks: wattage light? Best light for 10-inch diameter tank? 910 footcandles enough for one orchid?

Expert Response

Rich, check light level at leaf level. If 910 FC at leaf, probably fine for Masdevallia, but need more for Howeara. At least 500 FC at leaf for Masdevallia. If fixture 12-18 inches above plant, need at least 80 watts for 500 FC. Avoid overheating—fluorescent system good. Humidity at least 80%. Plant live moss with orchid; if moss thrives, orchid should too. Single plant wise to get conditions right. Adjust as you go.