The Bio Dude | Your #1 shop for all things reptile! | Spend $150 get $8.95 Flat Rate Shipping | Current order processing time: 3 business days | NOTICE: We currently cannot ship live plants to California

The science behind Terra Aranea

The science behind Terra Aranea

From the desk of The Dude:

Natural bioactivity occurs in almost every climate on earth, from the lush jungles of the Congo to bone-dry Australian deserts.  These ecosystems contain unique processes to manage the buildup of organic waste.  Cleaning organisms and chemical processes break down matter, and nutrients return to the soil to support new life.  Through these processes, the ecosystem is kept clean and healthy.

Our specially-designed substrates were developed to support the natural drivers of bioactivity.  In supporting their natural functions, we can bring authentic bioactive environments to the home vivarium.  Here, we will focus on our Terra Aranea substrate and the wide-ranging conditions it replicates.

The bottom layer of your terrarium sits the bringer of life, the specialty terrarium soil known as Terra Aranea. This specialty mix created by the Dude is the staple for a living substrate for all spiders, tarantulas, scorpions, and other invertebrates. This one-of-a-kind substrate covers the need of all the biomes (from wet to dry) and not only drains, aerates and composts effectively; but prevents the harmful buildup of negative bacteria and molds, which is a common problem with invertebrate keepers. Terra Aranea also retains all burrows and hides that your inverts make, which is very important especially when you are dealing with spiders (such as trapdoor) that utilize the substrate for their evolutionary niches. I have found this substrate brings out many of the instinctual niches that many desert animals do in their daily life. Terra Aranea provides excellent organic nutrition for your vivarium by creating necessary air pockets for root development and plant health. These air pockets are also necessary for the BioShot to create a sustainable population in the vivarium. This substrate when used exactly as directed in the Dude's guide this substrate can last 10+ years in the terrarium without ever being changed. This mix should have at least a 3” layer in the terrarium. Most tarantulas however prefer deeper substrate to create their dens. Depending on the biome you are replicating, adding a small amount of water into the Aranea will be very helpful with humidity retention. Daily misting is not needed for your drier biomes, but if keeping a more humid invertebrate (such as a Goliath Bird Eater) misting daily will be effective to maintain humidity requirements for those species. You do not need a drainage layer with the Terra Aranea as long as it is not overwatered and properly maintained with the Dude’s Bio Shot.


Humidity Range includes:

-  35%-100*% 

*Extra sphagnum can be used to achieve this will not reach the humidities alone.


Drainage needed?

  •  No; 90% of the time
  • There are cases in very high humidity 80% or higher where a porous-type drainage layer would be beneficial but never a loose/rock drainage layer. 

Common Animals Include:

  • Invertebrates
  • All Arachnids

Previous Post Next Post

  • Rebekah Walenta


Access Denied

What a shame ----  you do not have permission to view this page : D