Aqua Natural Aquarium Substrate, Diamond Black Fine Gravel, 10lb

Perfect consistency for Cory’s slight coarser than a true sand but close. Color is a true black with “sparkling “ crystal dispersed throughout. I did need to rinse before adding to aquarium but I did so about 3lbs at a time. And after only a few minutes was able to add to an existing aquarium by using a solo cup to transport it to the bottom and spread it out over my existing gravel with no noticeable change in water clarity. Yes a few stray grains floated around for a few hours but the water remained clear and I was never concerned about harm to the fish. In the end does what it’s supposed to do at reasonable price and looks good doing it

I ordered this to add a “sediment” layer for my aquatic plants, and to give a different landscape for my betta Tatsu. I rinsed and soaked them in a bucket overnight to get all the debris out and peace of mind that it’s clean; definitely helped with the cloudiness prior to adding. I added a thin layer across the pea gravel I already have; it was plenty of material for my 10 gallon tank. If used alone with no other substrate/rocks, you’d probably need 2 bags of this for a 10 gal. My pet peeves but doesn’t totally kill the vibe: 1. They don’t sparkle under water at all ☹️ 2. If you have a foam filter like mine that sits at the bottom, these quart rocks are as small as sand and my filter sucked them up and clogged it. I will be getting a top flow filter instead, so not too annoying. 3. I will update once I do a complete tank clean to share how difficult it is to clean with how small they are - by the looks of it, it’ll be a challenge. Wish they were larger size!

Looks exactly as it should. It needed a good rinsing but that was expected. Black enough for me. Don't care about sparkles. Some reds and browns give it some contrast. This works for me.

I did not have a great experience with this product. One thing to know is that it wasn't entirely the product's fault but somewhat my fault. This product was called "Gravel", and it is very different from gravel in the sense of size. The individual pieces are similar to sand, and it clogged my filter, and even know I am going back and forth from the sink filling up buckets to dump into the huge tank to the keyboard. This is a real nuisance. That part was a bit my fault for not being more careful and a bit their fault for not being clearer. However, that was not the only problem. The product says triple washed so I did not rinse it off before putting it into the tank. I probably should have though because it clouded the water terrible and pretty much turned the water gray. On a better note, before I redid the tank it looked prettier than ever with this stuff at the bottom. I recommend pairing this in a freshwater goldfish tank with sinking driftwood and lily pads/water lettuce or water hyacinths. This product was also very easy to use by simply cutting of the top corner to pour. This product also had a surprisingly good price to weight comparison. To conclude I had an alright experience with this product

Just set this up tonight in about an hour of time. Was sketch about getting the black sand and reading the reviews. However, if you do as everyone says and clean it, and then when you think the waters clean then rinse it one more time. I did this about 8 rinses in a kitty litter bucket we only use for freshwater. This picture is 5 minutes after I added the last bucket of water. Key point is to use a bowl and set it in the bottom and let it float around as you pour the water in, hitting the bowl with the water every drop. Crystal clean and looks amazing. Highly recommend this product if you do the right steps! Ps as you can see in the video it is not entirely black, but I love the color contrast and how it glistens off the LED light.

This is not fine sand nor is it small gravel. It's large sand. It is pretty easy to work with unlike sand and is easy on the bottom dwellers unlike gravel. Naturally colored it will bleed out a little while preparing. I did several rinses and soaks over 2 days before putting in the tank. It sparkles under the light but with no glare. vacuums pretty easily, you will get some up the tube but just let it sink to the bottom of the bucket, pour out and pinch it back into the tank. Simples. Would re-order again. This is the only thing IMO that competes with Carib Sea Supernaturals Peace River which is the perfect substrate in all situations. Just hard to fine and boring in color.

This black gravel looks amazing in the aquarium and really makes the fish and plants stand out. Cleaned up easily and didn’t cloud the water much. Great quality and gives the tank a sleek natural look.

Nice black sand/gravel but the strange part is that it's magnetic. While using my magnetic scraper to clean my new tank, I found it was getting covered in gravel. They did require several washes and still left a film in the tank while filling it. It's not BLACK BLACK and does have some other colors mixed in, but it's alright. Looks good though. Just strange that it's metallic...

De momento todo bien … me llamo la atención que el empaque (bolsa) no es el mismo diseño a como lo muestra la publicación… el empaque nuevo no dice que es “sustrato inerte” aun así dice que no eleva mucho los parámetros … estoy creando un gambario entonces espero que todo salga bien

Not suitable for bottom dwellers. Extremely sharp, I even cut my hand while rinsing! Some pieces are long, thin. It’s also not even black - it’s about 50% green, with occasional earth-tone pieces. Wish I’d trusted the forums and steered away, but I was eager for a black sand-like substrate. I’ll go back to using enamel-coated silicon sand for now. All grains you see in the photos are from the bag I ordered. Photos taken outside in the shade (natural light). Would return but I left it too long. Might use for my shrimp instead, after more research.

Love this substrate. It's like a fine gravel. Great for shrimps and corydoras. Really makes plants and shrimps etc pop.

En mi caso fue una excelente opción para mi gambario, les recomiendo leer las instrucciones de uso para su correcto funcionamiento, ya que veo mucho comentarios negativos. Lo recomiendo ampliamente si su intención es tener gambas, platas o peces pequeños.

My fish love it they go and rub their belly’s on it and it makes the tank look awesome, it holds the plants down in it the only issue is that if I point my filter straight down it will blow the sand around a bit, that’s the only issue I’ve been having, but I just point my filter side ways (almost like to create a current) and it all flows and works great