Seachem Fluorite Black Sand Substrate, 7.7lb

This is the finest sand I have ever seen. When I opened the bag, I actually thought it was powder. I had to rinse it several times, but now that it’s in the aquarium, it looks nice. Just be aware if you’re looking for larger grain, this is not for you.

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.

This worked great in my planted shrimp tank, I have purchased this substrate twice now. Word to the wise though; rinse, rinse, rinse, before adding to the tank to prevent cloudiness of your water or it it will take a long time to filter out the dust!

Washed my sand before adding it to the tank per the reviews. Water was cloudy at first but cleared up perfectly. As others have mentioned, the sand looks more gray than black but is gorgeous, and a great change from the gravel I had before. I ended up buying both the 14 lb and 7.7lb bags for my 20g tank to get the coverage I wanted. Could probably have gone with 2 of the 14s even.

I asked questions about removing the dusty presence in this. Got alot of helpful answers. What I did may have seemed unconventional and be seen as possibly dangerous environmentally to my little ones in the tank but they are happy and healthy so I believe it worked like a charm and may save you time. I tried the cut each corner top and let water filter through, lost alot that way but then put in tank. That didn't work, it looked like a fog, and I freaked. So I used the hose, from out doors, put in on side of tank let it fill to about 3 inches above the filtrate and used a hose comming out on other side to run water through it. My hose was set for a light splash causing it to move around and kept the suction hose about 3 inches up to suck out the fog. I did this for 20 mins. It worked pretty good. I slowly filled my tank with spring water, like a drizzle of 7 gallons, time consuming but worth it. Fog had gone 95% and its only getting better. Slow fill is best way, and rinse rinse rinse!! After the headache, its worth it!!

Sand has a nice color, works well, but just comes with a fair amount of dust. You do have to wash it several times but if you are careful and slowly add it to your tank it's not bad. Cleared in my tank within 24 hours.

I’ve been looking for a black sand, but also something to help plants grow. Hopefully this turns out well! I don’t think this bag would have been quite enough to cover my 9.1 gallon long, but I had other sand and some Fluval Stratum to add some elevation in the back and more fertilizer. I’ve seen many mixed reviews, many people not cleaning it properly or cleaning it too much. I used the pillow case method and then the overflow bucket method. The first few rinses yielded a dull brown muddy water, what you want to get rid of. When dumping the water out after the first rinses I noticed dark particulates flowing out and realized it’s just like Fluval Stratum. The more you agitate the substrate, the more fertile dust gets released. This is the stuff that you want to keep! Many people end up washing away all the fine dust and end up with gray sand. Just rinse it until you can fill up the bucket and end up with clean water when sitting still. I had it sitting in the bucket for a few hours before my tank was ready. I had a very small amount of water at the bottom of the tank when scooping in the sand. With this kind of “fertilized” substrate, you don’t want to fill the tank right away. Take your time and play around with the scape with 1/3 inch of water. And then of course use a bowl or plate to disperse the water to prevent any agitation. Taking your time is key with this stuff, but you don’t have to over clean it! Just let the sand sit at the bottom of the tank, without filling it right away.

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.

Muy buen sustrato

Sabbia

Love this product

Produto veio certinho.

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.