Exo Terra BioDrain Terrarium Substrate for Aquarium, 4.4-Pound

Price: $11.99
(as of Oct 18, 2025 14:53:55 UTC – Details)

Exo Terra BioDrain Terrarium Draining Substrate is a natural, non-organic substrate that allows excellent drainage of the terrarium. It will not rot or decompose like other natural substrates. The optional BioDrain Terrarium Draining Mesh ( sold separately) will keep the BioDrain Terrarium Draining Substrate separated from the decorative terrarium top-layer substrate and prevent the different substrates from mixing and contaminating the water. The BioDrain Terrarium Draining Substrate will function as a biological filtration system. The clean terrarium water can then be circulated in waterfalls, the Exo Terra Rain System or plants.
Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 2.5 x 10 x 2.5 inches; 4.41 Pounds
Item model number ‏ : ‎ PT3115
Department ‏ : ‎ Unisex-Adult
Date First Available ‏ : ‎ March 24, 2013
Manufacturer ‏ : ‎ Rolf C. Hagen (USA) Corp.
ASIN ‏ : ‎ B009ZWA0JU
Best Sellers Rank: #48,147 in Pet Supplies (See Top 100 in Pet Supplies) #109 in Terrarium Substrate
Customer Reviews: 4.7 4.7 out of 5 stars 364 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); } }); });

Natural; non-decomposable substrate
Creates a water drainage system
Ideal for tropical terrariums and paludariums