Seachem Flourite Black Planted Aquarium Gravel
Flourite is a specially fractured, stable, porous clay gravel designed for natural planted aquariums. Its dark, natural appearance complements planted environments well and is ideal for creating a realistic substrate. Flourite works best when used as a standalone substrate bed, though it can be mixed with other gravels. No gravel modifiers like laterite are required.
Flourite is not chemically coated or treated and does not affect water pH. It is durable and supports plant growth over time, with no need for frequent replacement.
| Specification | Details |
|---|---|
| Weight | 3.5kg (7.7lbs) |
| Material | Clay gravel |
| Use | Planted aquariums, freshwater environments |
| Substrate Type | Integral substrate bed |
FAQ
Can Flourite be mixed with other types of gravel?
Yes, Flourite can be mixed with other gravels, though it performs best when used alone as the primary substrate.
Does Flourite affect the pH of the water?
No, Flourite is not chemically treated and does not alter the pH of the aquarium water.
How long does Flourite last in an aquarium?
Flourite is designed to last the life of the aquarium and does not need to be replaced.

Christian May –
Used Flourite in my planted tank for six months. The roots of my plants are well anchored and the gravel stays stable. No pH changes were noticed. Easy to work with and looks natural in the tank.
Brandon Marshall –
Great for planted setups. The porous texture helps with root development. I didn’t need to add any substrate enhancers. It’s clean and holds nutrients well.
Trevor Murray –
The gravel is dense and holds up well under plant growth. A little bit of settling happened after a week, but it settled completely. No issues with water chemistry.
Brandon Grant –
I mixed it with a small amount of sand for texture. The plants grew well and the tank looks natural. No need for modifiers or pH adjustments.