Seachem Flourite Black Sand 3.5kg
Flourite Black Sand is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment. Flourite Black Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Flourite Black Sand is not chemically coated or treated and will not alter the pH of the water. Flourite Black Sand is good for the life of the aquarium and need not be replaced. To determine the number of bags required for your aquarium, please note that each bag (7 kg, 15.4 lbs) occupies a volume of approximately 5500 cm3 (320 cu. in.). To determine your desired volume multiply tank width by length by desired depth.
Flourite Black Sand is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment. Flourite Black Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Flourite Black Sand is not chemically coated or treated and will not alter the pH of the water. Flourite Black Sand is good for the life of the aquarium and need not be replaced. To determine the number of bags required for your aquarium, please note that each bag (7 kg, 15.4 lbs) occupies a volume of approximately 5500 cm3 (320 cu. in.). To determine your desired volume multiply tank width by length by desired depth.
Flourite Black Sand is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment. Flourite Black Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Flourite Black Sand is not chemically coated or treated and will not alter the pH of the water. Flourite Black Sand is good for the life of the aquarium and need not be replaced. To determine the number of bags required for your aquarium, please note that each bag (7 kg, 15.4 lbs) occupies a volume of approximately 5500 cm3 (320 cu. in.). To determine your desired volume multiply tank width by length by desired depth.
Flourite Black Sand is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment. Flourite Black Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Flourite Black Sand is not chemically coated or treated and will not alter the pH of the water. Flourite Black Sand is good for the life of the aquarium and need not be replaced. To determine the number of bags required for your aquarium, please note that each bag (7 kg, 15.4 lbs) occupies a volume of approximately 5500 cm3 (320 cu. in.). To determine your desired volume multiply tank width by length by desired depth.
in 37 offers
The lowest price for Seachem Flourite Black Sand 3.5kg right now is $30.35 at eBay.com.au, compared across 21 retailers.
The all-time low was $13.29 on 9 Sept 2026 — today's price is 128% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 19 Oct 2026.
Last updated at 19/10/2026 08:31:37
Seachem Fluorite Natural Sand (SC3523)
Free delivery
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Seachem Flourite Black Aquarium Fish Tank Plant Substrate | 3.5kg
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seachem Flourite Black Sand 3.5kg
Seachem Flourite Black 3.5kg
Delivery between 28–30 Oct $12
Seachem Flourite Black Sand 3.5kg
Delivery between 22–29 Oct $12.50
Seachem Flourite Black Sand 3.5kg – Planted Aquarium Substrate
Delivery between 20–28 Oct $20.05
Seachem Flourite Black Sand 3.5kg
Seachem Flourite Black Sand 3.5kg
Delivery between 22–29 Oct $9.50
Seachem Flourite Black 3.5kg - Aquaristic Online
Delivery $14
Seachem Flourite Black Sand 3.5kg
Delivery $11.95
| Country of origin | USA |
| Is discontinued by manufacturer | No |
| Plant or animal product type | Aquarium plants |
| Recommended uses for product | bedding for fresh water aquarium |
| Specific uses for product | Suitable for Fresh Water, For Plant Aquariums |
Seachem Fluorite Natural Sand (SC3523)
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seachem Flourite Black Aquarium Fish Tank Plant Substrate | 3.5kg
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seachem Flourite Black Sand 3.5kg
Seachem Flourite Black 3.5kg
Delivery between 28–30 Oct $12
Seachem Flourite Black Sand 3.5kg
Delivery between 22–29 Oct $12.50
| Country of origin | USA |
| Is discontinued by manufacturer | No |
| Plant or animal product type | Aquarium plants |
| Recommended uses for product | bedding for fresh water aquarium |
| Specific uses for product | Suitable for Fresh Water, For Plant Aquariums |
