LANDEN THRIVA Natural Soil Substrate for Planted Aquarium - Rich

In this review of the LANDEN THRIVA Natural Soil Substrate, the bottom line is simple: it is aimed at freshwater hobbyists who want a plant-first substrate that supplies slow-release nutrients while helping maintain slightly acidic, clear water. The reviewer found the Rainforest Black granules to be roughly 3mm, porous, and mineral-rich, making them well suited for rooted aquatic plants and shrimp beds. For aquarists replacing inert gravel, this substrate delivers a noticeably plant-friendly medium without the need for initial rinsing.

Key Features

• Natural raw materials: The substrate is made from natural sources with organic matter, humic acid, and mineral trace elements that closely mimic watershed aquatic soil for easier nutrient uptake by plants.
• Long-lasting fertility: A wrapping slow release technology provides steady nutrient delivery so plants receive ongoing support without rapid depletion.
• Stable particle structure: Advanced firing means the granules remain intact underwater, resist chalking, and can be reused or rebuilt in tanks over time.
• Water chemistry support: The substrate reduces hardness and lowers pH moderately, creating a more suitable environment for weakly acidic aquatic plants and shrimp.
• Porous texture: Irregular, porous pellets recreate a natural landscape and offer a stable surface for beneficial bacteria and root development.

Who It's For

The LANDEN THRIVA soil is best for freshwater aquarists who prioritize planted setups, shrimp keepers, and anyone seeking a nutrient-rich base to encourage strong root growth and healthier plant coloration. Beginners who want a low-fuss substrate will appreciate that no rinsing is recommended and the product is safe after an initial settling period.

It may be less suitable for aquarists who need a neutral or alkaline substrate, those running tanks with fish intolerant of water parameter shifts, or setups where a very fine grain is required; consider alternatives if precise pH neutrality is essential.

Pros & Cons

Pros

• Promotes robust plant rooting and growth thanks to natural organic and mineral content.
• Slow-release nutrient design provides sustained fertility without frequent substrate replacement.
• Porous particles support beneficial bacteria, aiding overall water quality.
• Designed to lower hardness and pH, useful for weakly acidic plant species and shrimp.

Cons

• Initial water cloudiness is reported by some users, so a brief settling and filtration period is required.
• Not ideal where a neutral to alkaline substrate is needed for specific livestock.

Specifications

Brand	LANDEN
Product	NATURAL SOIL SUBSTRATE Rainforest Black
Bag size	5L (about 10lbs)
Granule width	About 3mm (medium)
Composition	Natural organic matter, humic acid, mineral trace elements
Function	Slow-release nutrient, acid reduction, porous for beneficial bacteria

Our Verdict

The LANDEN THRIVA Natural Soil Substrate is a good-value choice for planted and shrimp aquariums where slightly acidic conditions and steady nutrient availability are desired. It offers plant-friendly nutrients and a porous, stable particle structure that supports roots and beneficial bacteria, although users should allow for an initial settling period to clear any cloudiness.

Frequently Asked Questions

Do I need to rinse this substrate before use?
The manufacturer recommends no rinsing; place a bowl or bag in the tank and let water overflow gently onto the gravel bed while filtration clears initial cloudiness.

Will it change my tank water chemistry?
Yes, the substrate is formulated to reduce hardness and lower pH somewhat, making it better suited to weakly acidic plant species and shrimp.

Is it safe for fish and shrimp immediately?
The product has been tested as harmless, but the suggestion is to wait at least one week before moving fish or shrimp into a freshly filled tank to let parameters stabilize.