Seachem Flourite Dark is a specially fractured, porous clay gravel developed for use in natural planted aquariums. Its dark appearance enhances the visual contrast of plants and décor, making it particularly suitable for aquascaping, while remaining versatile enough for general aquarium use.

This substrate is stable and long-lasting, designed to be used alone as a complete substrate bed or mixed with other gravels if preferred. It is not chemically coated or treated, meaning it will not alter water parameters such as pH, making it suitable for a wide range of freshwater setups.

Although pre-washed, a light rinse before use is recommended to remove any residual dust. Some initial cloudiness may occur when filling the aquarium, but this typically clears within 12–24 hours. Filling the tank slowly and minimising disturbance to the substrate bed will help reduce this effect.

Condition Note: Original bag was split and the product has been repackaged. Substrate remains usable.

Key Features:

• Porous clay gravel designed for planted aquariums
• Natural dark colour enhances plant contrast
• Does not alter pH or water chemistry
• Can be used alone or mixed with other substrates
• No need for additional gravel modifiers
• Long-lasting and stable substrate structure

Seachem Flourite Dark provides a reliable base for plant growth while maintaining stable water conditions, making it a practical choice for both new and established planted aquariums.

Specifications:

• Material: Porous clay gravel
• Use: Freshwater planted aquariums
• Water Impact: Does not alter pH
• Application: Substrate layer (can be used alone or mixed)
• Preparation: Pre-washed (rinsing recommended)
• Condition: Repackaged due to split bag

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.