---
product_id: 142626532
title: "Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter)"
brand: "ultum nature systems"
price: "€ 407.73"
currency: EUR
in_stock: true
reviews_count: 4
category: "Ultum Nature Systems"
url: https://www.desertcart.fi/products/142626532-ultum-nature-systems-controsoil-freshwater-aqua-soil-substrate-for-fish
store_origin: FI
region: Finland
---

# Volcanic ash base for natural nutrients Extra fine granules optimize plant growth Stable 6.8pH & low ammonia for healthy water Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter)

**Brand:** ultum nature systems
**Price:** € 407.73
**Availability:** ✅ In Stock

## Summary

> 🌿 Transform your tank into a thriving aquatic paradise — don’t let your plants and pets miss out!

## Quick Answers

- **What is this?** Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter) by ultum nature systems
- **How much does it cost?** € 407.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/142626532-ultum-nature-systems-controsoil-freshwater-aqua-soil-substrate-for-fish)

## Best For

- ultum nature systems enthusiasts

## Why This Product

- Trusted ultum nature systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Zero Hassle Setup:** No rinsing required—instantly clears cloudy water and detoxifies for a crystal-clear aquarium.
- • **Aquascape Like a Pro:** Volcanic ash substrate delivers rich nutrients and superior oxygen exchange for lush aquatic plants.
- • **Soft & Inviting Terrain:** Extra fine, lightweight granules create a gentle substrate ideal for bottom feeders and delicate roots.
- • **Boost Beneficial Bacteria:** Low ammonia release accelerates natural biofilter development, enhancing water quality.
- • **Tailored for Freshwater Life:** Perfectly balanced slightly acidic pH (6.8) supports thriving fish and shrimp ecosystems.

## Overview

Ultum Nature Systems Controsoil is a premium freshwater aquarium substrate made from volcanic ash with an extra fine black granule texture. It maintains a stable slightly acidic pH of 6.8 and releases low ammonia, promoting beneficial bacteria growth and optimal conditions for fish, shrimp, and live plants. Designed for easy use with no rinsing needed, it quickly clears water and supports vibrant aquascaping and healthy aquatic ecosystems.

## Description

desertcart.com : Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter) : Pet Supplies

Review: Great for Cory Catfish! Amazing Substrate!!! - Amazing substrate! Can’t go wrong with it! The substrate when rinsing it off is very dirty and messy so keep that in mine! It will also make your tank very cloudy but it clears up within around 4 hours (if you have your filter going, in this case I have a sponge filter) or overnight without a filter. The next morning the water was crystal clear, I’ll probably update within a couple of months to see if my plants are doing any better than the gravel they were in but I have high hopes for this soil. This soil does great for bottom feeders! I have cory catfish and a betta in a 10 gallon tank and my cory’s now love to lift their behinds up to dig into the soil because it’s so soft and light weight. I’d highly recommend this for any bottom feeders that aren’t rough with the soil because the pellets CAN break and turn into little crumbles of dust or dirt. UPDATE: Still a really good substrate! I added Ludwigia Repens to my tank and they grew so fast along with the hornwort which I added a couple of weeks ago. My betta fish loves resting on it and weaving through the overgrown plants BUT the only thing is that the darkest shade that it comes in is two or three shades light so black is brown and brown is tan. I got the black/brown and it’s a dirty brown-tan color. It’s perfectly fine because I’ll be topping it off with Fluval but this is a better bang for your buck if you wanted Fluval but wanted a big bag. Update 2023: It’s still going strong and continues to help my aquatic plants thrive! I did realize that you need to wash the soil out a lot and wait a good amount of time for the black to really set in. After a few months the color changed from brown/tan to black with spots of brown throughout. It’s been a minute since I’ve bought this soil and the price has gone down drastically (by $30) so I’ll definitely be buying myself another back to touch up on the old soil.
Review: Beautiful substrate for a planted tank. - I bought the Xfine Brown and very happy with the color. It appears darker brown, but under water and my ONF Light, the color takes on a lighter tone. This works extremely well with Dragon Stone. It is indeed very fine and so easy to work with. I did NOT rinse it. I placed my hardscape in, then planted into the substrate dry, misting the plants. When I filled the tank, there were floaters, but the moment you placed your fingers on them, they sunk. None of my microsword plants floated to the top, or other plants. The next day, the tank was completely clear, I was astonished actually. In fact, I'm ready to release my Betta as all my numbers are spot on and the temperature is perfect. I highly recommend for its fine texture, ease of planting, no rinsing and finally, it really looks amazing !

## Features

- Designed For Planted Aquariums - Granule composition and sizes provide optimal oxygen exchange and rich nutrients for aquatic plants
- Optimal For Fish And Shrimp - Suitable for all freshwater inhabitants such as tropical fish and shrimp that prefer slightly acidic aquarium water
- Low Ammonia Release - Promotes and accelerates beneficial bacteria growth
- No Rinsing Required - Helps clarify and detoxify cloudy water by actively absorbing impurities
- pH & kH buffering - Buffers water to slightly acidic pH and lowers total water hardness for better aquatic plant nutrient consumption environment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07C2K1VNP |
| ASIN  | B07C2K1VNP |
| Best Sellers Rank | #13,735 in Pet Supplies ( See Top 100 in Pet Supplies ) #30 in Aquarium Substrate |
| Brand Name | Ultum Nature Systems |
| Color | Black - Extra Fine |
| Customer Reviews | 4.6 4.6 out of 5 stars (614) |
| Date First Available | April 12, 2018 |
| Date First Available  | April 12, 2018 |
| Directions | Place the substrate in an empty aquarium. When filling the aquarium with water, use a dish or other item to disburse the water flow and minimize disruption to the substrate layer. |
| Is Discontinued By Manufacturer  | No |
| Item Package Dimensions L x W x H | 18.31 x 10.87 x 4.65 inches |
| Item Weight | 20 Pounds |
| Manufacturer | Marfied |
| Manufacturer  | Marfied |
| Package Dimensions  | 18.31 x 10.87 x 4.65 inches; 20 Pounds |
| Size | 10 Liters (9.1 kg) |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Ultum Nature Systems
- **Item Form:** Granules
- **Item Weight:** 20 Pounds
- **Liquid Volume:** 10 Liters
- **Manufacturer:** Marfied

## Images

![Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter) - Image 1](https://m.media-amazon.com/images/I/61MCM-hz-1L.jpg)
![Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter) - Image 2](https://m.media-amazon.com/images/I/71GSOW2U4vL.jpg)
![Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter) - Image 3](https://m.media-amazon.com/images/I/71Hka6eVN9L.jpg)
![Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter) - Image 4](https://m.media-amazon.com/images/I/71RF-vPZY-L.jpg)
![Ultum Nature Systems Controsoil - Freshwater Aqua Soil Substrate for Fish, Shrimp, Live Plant Propagation and Aquascaping - 6.8pH Low Ammonia, Volcanic Ash - Black, Extra Fine (10 Liter) - Image 5](https://m.media-amazon.com/images/I/71f9XITn7SL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for Cory Catfish! Amazing Substrate!!!
*by U***N on February 20, 2019*

Amazing substrate! Can’t go wrong with it! The substrate when rinsing it off is very dirty and messy so keep that in mine! It will also make your tank very cloudy but it clears up within around 4 hours (if you have your filter going, in this case I have a sponge filter) or overnight without a filter. The next morning the water was crystal clear, I’ll probably update within a couple of months to see if my plants are doing any better than the gravel they were in but I have high hopes for this soil. This soil does great for bottom feeders! I have cory catfish and a betta in a 10 gallon tank and my cory’s now love to lift their behinds up to dig into the soil because it’s so soft and light weight. I’d highly recommend this for any bottom feeders that aren’t rough with the soil because the pellets CAN break and turn into little crumbles of dust or dirt. UPDATE: Still a really good substrate! I added Ludwigia Repens to my tank and they grew so fast along with the hornwort which I added a couple of weeks ago. My betta fish loves resting on it and weaving through the overgrown plants BUT the only thing is that the darkest shade that it comes in is two or three shades light so black is brown and brown is tan. I got the black/brown and it’s a dirty brown-tan color. It’s perfectly fine because I’ll be topping it off with Fluval but this is a better bang for your buck if you wanted Fluval but wanted a big bag. Update 2023: It’s still going strong and continues to help my aquatic plants thrive! I did realize that you need to wash the soil out a lot and wait a good amount of time for the black to really set in. After a few months the color changed from brown/tan to black with spots of brown throughout. It’s been a minute since I’ve bought this soil and the price has gone down drastically (by $30) so I’ll definitely be buying myself another back to touch up on the old soil.

### ⭐⭐⭐⭐⭐ Beautiful substrate for a planted tank.
*by D***A on March 1, 2023*

I bought the Xfine Brown and very happy with the color. It appears darker brown, but under water and my ONF Light, the color takes on a lighter tone. This works extremely well with Dragon Stone. It is indeed very fine and so easy to work with. I did NOT rinse it. I placed my hardscape in, then planted into the substrate dry, misting the plants. When I filled the tank, there were floaters, but the moment you placed your fingers on them, they sunk. None of my microsword plants floated to the top, or other plants. The next day, the tank was completely clear, I was astonished actually. In fact, I'm ready to release my Betta as all my numbers are spot on and the temperature is perfect. I highly recommend for its fine texture, ease of planting, no rinsing and finally, it really looks amazing !

### ⭐⭐⭐⭐⭐ Excellent substrate for Alocasias, tissue cultures, and imports
*by Y***H on November 8, 2025*

Ultum Nature Systems Controsoil works amazingly well for my Alocasias. The texture and moisture retention are just right, helping new roots develop quickly and evenly. It’s clean, lightweight, and doesn’t compact easily, which makes it perfect for tissue culture plants and freshly imported specimens that need a gentle but stable medium. I’ve noticed much faster root growth and healthier leaves since switching to this substrate. It also drains well while keeping enough humidity around the roots, preventing rot. Even though it’s designed for aquascaping, it performs beautifully for plant propagation and acclimation. Highly recommended if you grow tropical plants or start delicate TCs.

## Frequently Bought Together

- Ultum Nature Systems Controsoil - Aquarium Substrate Soil Porous Gravel for Natural Aquatic Freshwater Planted Fish Tank, Brown (Extra Fine, 10 Liters)
- Aqua Natural Sugar White Sand 10lb Substrate for aquascaping, Aquariums, vivariums and terrariums
- Fluval 12695 Plant and Shrimp Stratum for Freshwater Fish Tanks, 17.6 lbs. – Aquarium Substrate for Strong Plant Growth, Supports Neutral to Slightly Acidic pH

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-05*