The Bio Dude Terra Firma Bioactive Reptile Substrate 6 quarts for terrariums and vivariums. Bioactive Habitat Substrate for Ball Pythons, Fat Tail Geckos, Milk Snakes, King Snakes and Monitors
$24.95






Price: $24.95
(as of Oct 26, 2025 10:10:14 UTC – Details)
Product description


For temperate-dwelling pets
Ideal for species from seasonal savannas, semiarid regions, coastal rainforests, and riverbanks. Best used in tanks with a humidity range of 50-75%.

No need for a drainage layer
Since most burrowing species would dig right past a substrate barrier and into the drainage layer, Terra Firma is designed to be used without one.

Ecourages burrowing
Terra Firma is designed to replicate the silty soil that many reptile and amphibian species dig burrows and tunnels in in their natural habitats.

Supports a balanced ecosystem
When paired with plants and clean-up crew, this substrate recycles waste, returning nutrients to the soil for a clean, thriving bioactive ecosystem.
Date First Available : July 16, 2019
Manufacturer : The Bio Dude
ASIN : B07TS93BJF
Best Sellers Rank: #98,032 in Pet Supplies (See Top 100 in Pet Supplies) #206 in Terrarium Substrate
Customer Reviews: 4.8 4.8 out of 5 stars 73 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
PLANTS THRIVE: Proven for years to accommodate a huge variety of plants from succulents to temperate/tropical plants.
PROPER AERATION AND DRAINAGE for bioactive terrariums. Will not clog and stagnate.
HOLDS ALL TUNNELS AND BURROWS: Aids in shedding, respiration and hydration.
NO DRAINAGE LAYER REQUIRED
8 reviews for The Bio Dude Terra Firma Bioactive Reptile Substrate 6 quarts for terrariums and vivariums. Bioactive Habitat Substrate for Ball Pythons, Fat Tail Geckos, Milk Snakes, King Snakes and Monitors
Add a review
$24.95
michael –
Great for my piebald ball python
So for a ball pythons specifically, itâs been great. A for sure bio active substrate for ball pythons itâs been great for my baby pie bald python. No drainage layer needed, two 6 quart bags for a 20 gallon housing a baby ball python has worked great. I also used bio shot with oak leaves and I can tell my python feels like itâs in a realistic environment.P.S i use an automatic mister that mists three times a day to keep 50-70% humidity on avg.
Antonio Ramirez –
Works as pictured
No complaints it works effectively and as described, it has no smell, and it looks great in my terrarium for my snakes
Ryan –
Best substrate out there
Perfect for critters that need high humidity! Does not need to be replaced every 2 weeks, not harmful like other reptile substrates out there. Go to biodude.com for additives
JohneeCarlos –
Incredible!
very quick shipment and all the products look feel and smell good! First nite it maintained a humidity level of 82% and in the morning it barely dropped. Little isopods looked happy scampering around and should help with the biodudes products.. worth every penny!
Dianne A. Thurman –
Great
Great
Alex –
Amazing substrate
Great substrate will have to recommend to my friend for her ball python.
Alex –
Good quality substrate
Great substrate!
Sunshine –
Great product
Great product⦠using it for a mixture for my chameleon laybin⦠has a lot of wood pieces, big and smallâ¦