Fluval 12696 Natural Mineral-Rich Volcanic Soil Bio Stratum for Planted Tanks, 4.4 lbs. – Aquarium Substrate for Healthy Plant Development, Growth, and Color

Price: $15.99 - $12.04
(as of Oct 24, 2025 02:00:39 UTC – Details)

Fluval Bio-Stratum features beneficial “bioactives” that efficiently break down waste, jumpstart the nitrogen cycle, and swiftly diminish ammonia levels, ensuring stable water conditions in new aquariums and sustaining health in established ones. Its fine powder granules serve as an extra biological filtration source, fostering enhanced water quality through their porous and non-compacting nature. Explore our range of fish tank accessories, including aquarium filters, filter media, heaters, air pumps, lights, rocks, thermometers, and stands.

With a legacy dating back to 1975, Fluval revolutionized the aquarium industry with the world’s first 3-stage filter utilizing synchronous motor technology—an innovation still influential today. Our commitment to innovation continues, as we persistently strive to develop cutting-edge aquarium products that set benchmarks in quality, style, and functionality. Fluval’s mission transcends product creation; we aim to inspire aquarists of all levels to appreciate and uphold the hobby’s beauty and importance for generations to come.
Product Dimensions ‏ : ‎ 16.93 x 12.6 x 0.2 inches; 4.4 Pounds
Item model number ‏ : ‎ 12696
Date First Available ‏ : ‎ April 13, 2022
Manufacturer ‏ : ‎ Rolf C. Hagen (USA) Corp.
ASIN ‏ : ‎ B09XVP3HGK
Best Sellers Rank: #3,497 in Pet Supplies (See Top 100 in Pet Supplies) #3 in Aquarium Gravel
Customer Reviews: 4.7 4.7 out of 5 stars 1,671 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); } }); });

Promotes Robust Plant Growth: This aquatic soil helps enrich plant development and fosters vigorous growth with vibrant coloration, ensuring your aquarium thrives with lush foliage
Activates Beneficial Water Conditions: Infused with dormant nitrifying organisms, our aqua soil activates upon contact with water, swiftly breaking down waste and initiating the nitrogen cycle for a balanced aquatic ecosystem
Stabilizes Water Conditions: Rapidly reducing ammonia levels, Fluval soil helps stabilize water conditions in new aquariums, ensuring a healthy environment for your aquatic inhabitants
Enhances Root Penetration: Featuring lightweight 1 mm powder granules, our non-compacting substrate allows delicate roots to effortlessly penetrate and spread, promoting optimal plant growth
Improves Water Quality: Porous granules facilitate extensive bacterial colonization, serving as an additional biological filtration source, while a potent blend of nutrients and minerals ensures improved water quality for your aquarium ecosystem