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Your cart is empty.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.
TankGuy
Reviewed in the United States on January 25, 2025
As described but needs washed well.
Emma Jay
Reviewed in the United Kingdom on January 13, 2025
The price is a bit high and one bag wasnt enough but honestly the quality of this sand is worth it. Would buy this Product again for a more planted tank.
Dave Anderson
Reviewed in Canada on September 14, 2024
The substrate looks amazing but it takes a little bit of work in preparation. I rinsed it 7 or 8 times in a bucket before I put it into my empty aquarium. Then I did the hardscape and live plants before I VERY SLOWLY put the water in with no disturbing the sand. Once full the water stayed crystal clean. The picture was taken right after I was done filling the aquarium with water.
RC
Reviewed in the United States on May 10, 2024
I’ve been using this in my 5.5 gal aquarium with two plants, and I love it! I only needed one bag, and it was plenty to fill the bottom and cover my plant roots. My plants have been thriving for years. I do have 5 fish the size of tetras and snails that live with them. I do get some of it sucked up when I do my cleaning, but that’s bound to happen when you’re doing regular cleaning. I read that a lot of people have this for the life of the aquarium, so it’s a great, quality Investment.
SB
Reviewed in the United States on March 3, 2024
This stuff is super fine and so light that the slightest disturbance sends it swirling up into the water column and eventually settling on tank decor or leaving shallow or bare spots. As others have mentioned, it requires a lot of rinsing and a lot of the material will stick to the surface due to water surface tension. Add this to an existing tank and its going to be cloudy for a few days if not longer. For a new tank, I'd rinse, add to tank, slowly fill with water, and then run a filter with fine floss for several days and perhaps some Accu-Clear or equivalent. It's also not jet black but more of a really dark charcoal.
Hollie Dee
Reviewed in the United States on December 3, 2024
I bought this black sand for my aquarium, and wow—my tank went from basic to breathtaking! It’s like my fish are swimming in a sleek, underwater penthouse.Why it’s awesome:Stunning Aesthetic: The deep black color makes everything in my tank pop—plants look greener, fish look brighter, and even my snails seem fancier.Soft & Fish-Friendly: The texture is smooth and safe, perfect for bottom-dwellers who like to sift through it. No sharp edges here!Easy to Clean: I expected a mess, but it rinsed surprisingly well and didn’t cloud my water. (Pro tip: rinse thoroughly, and you’ll be good to go!)No Fading: After weeks in my tank, it’s still as jet-black as day one.If you’re looking to elevate your aquarium’s look, this black sand is a game-changer.
joseph simon
Reviewed in Australia on December 23, 2024
Works well does everything it states
Alan T
Reviewed in the United States on April 7, 2024
Much easier to rinse in batches than the whole bag in a bucket.Use a garden hose to gently agitate the sand and dump out the fine particles that float to the surface.Looks great in the tank but it is a little pricey.
Rainy
Reviewed in the United States on August 10, 2023
I had second thoughts about adding this sand to my aquarium after reading the reviews and seeing firsthand how long it takes to rinse. I used the ‘bucket method’, meaning I dumped the contents of the bag into my aquarium bucket and stuck the hose in it, tipping the dark dirty water out very carefully, over and over and over…It never did rinse clean but I grew weary so I poured the water off one final time and left the bucket by the aquarium to rest for two days.Once the gorgeous new rocks arrived from Amazon, I did a 50% water change, along with tank maintenance.Using a small mesh strainer received with a rock tumbler, I added the sand. That turned out to be the perfect device for dropping the sand where I wanted. I slowly lowered the strainer into the water, positioned it, and gently tipped the contents.The way this sand moves in water is absolutely amazing and a beautiful sight. It spreads quickly and there was little cloudy residue in the water afterward. I used about half the sand, and plan to use the remainder when the new plants arrive.Definitely worth the time and effort it took to clean, but wish it wasn’t necessary. One rinse sure, but this sand is work.Update: The plants seem to like the combination of sand and root tabs, so I have purchased another three bags for our other aquariums. Yes, I am a glutton for punishment apparently.Another Update: 4 times I have purchased this sand. This last time it messed the water up. I have since discovered I can buy something similar at the pet store nearby that is already clean and ready to go straight in the tank. That is the future plan. 😵💫
Mallory
Reviewed in the United States on February 23, 2023
Not sure what people are upset about. I washed this sand and then put it in my tank. It wasn't cloudy at all, but I added Seachem Clarity to settle anything left over, which makes the water cloudy for a few hours or a day. It's super black until the light is on it, then it has some reflective specs, but it's all black. I think it looks really nice! I am sprouting some plants to grow in the sand.One bag was perfect for my Fluval Flex 9. I only use Seachem products, definitely quality like everything else Seachem has.
Juliana
Reviewed in Brazil on July 18, 2022
Produto veio certinho.
Darren
Reviewed in the United States on May 31, 2022
Yes, cleaning this is an undertaking. But if you want the beauty/benefits of high quality sand for your planted tank, that shouldn’t matter.The way I did this, and to minimize lost substrate, is throw everything in a large bowl. Then, beneath the bowl, place a cookie sheet or two of various sizes, nested within each other. Works best if the sheets have a dimpled/ribbed pattern.As you drain the water from the bowl, the cookie sheet(s) will act similarly to a gold catcher/sleuth. The heavier particles will collect in the ridges as the dirty water flows over and out. This will save a lot of the sand that spills over by nature. Simply collect it and return to the tank once water runs clear (while actively churning the sand).
Enrico
Reviewed in Italy on November 9, 2022
Sabbia
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