Aquasolum – Black Humate 4kg
Overview
Aquasolum™ is a lightweight, porous substrate derived from humic substances and minerals. Humic substances may increase the uptake of micronutrients.
Ingredients: leonardite, rhyolite, biotite, quartz, feldspar, obsidian, and amphibole
CONTAINS OTHER NON PLANT FOOD INGREDIENT(S):
1.12% Humic Acid (from leonardite)
Directions
Although it is pre-washed, it may become dusty in transit and require rinsing before use to remove any residual dust. To determine the number of bags required for your aquarium, please note that each bag (2 kg, 4.4 lbs) occupies a volume of approximately 1,630 cm3 (100 cu. in.). To determine your desired volume multiply tank width by length by desired depth.
TIPS: When adding water to aquarium, fill slowly to avoid disturbance.
| Specification | Value |
|---|---|
| Weight | 4kg |
| Volume per bag | 1,630 cm³ (100 cu. in.) |
| Humic Acid Content | 1.12% |
| Ingredients | Leonardite, rhyolite, biotite, quartz, feldspar, obsidian, amphibole |
FAQ
How should I prepare the Aquasolum substrate before using it in my aquarium?
Although pre-washed, the substrate may become dusty during transit. Rinse it thoroughly before use to remove any residual dust.
What is the volume of one 4kg bag of Aquasolum?
Each 4kg bag occupies a volume of approximately 1,630 cm³ (100 cu. in.).
Does Aquasolum contain any plant-based nutrients?
No, Aquasolum contains humic substances and minerals, not plant-based nutrients.

Harry Tucker –
I used Aquasolum in my 50-liter tank and noticed better plant growth after a few weeks. The substrate is easy to handle and doesn’t clump. I rinsed it before adding to the tank as advised. My plants are thriving and the water color has improved slightly.
Christopher Randall –
The substrate is lightweight and fits well in my aquarium. I followed the rinsing instructions and it didn’t cause any issues. My planted tank looks more natural now. A good choice for beginners.
Theresa Hunter –
I’ve tried several substrates, and Aquasolum stands out for its porosity and stability. The humic acid content seems to help with nutrient absorption. It’s easy to mix with the water and doesn’t settle quickly.