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 30 offers
The lowest price for Seachem Flourite Black Sand 3.5kg right now is $30.89 at eBay.com.au, compared across 19 retailers.
The all-time low was $13.29 on 9 Sept 2026 — today's price is 132% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 19 Sept 2026.
Last updated at 19/09/2026 00:27:43
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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!
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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!
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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!
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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 Sand 3.5kg
Delivery between 23–30 Sept $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 |
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 Substrate - Flourite Black Sand 3.5kg
Delivery $15
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 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!
Sc3523 Fluorite Natural Sand - Quality Substrate For Lively Freshwater
Delivery $20
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!
| 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 |
