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🖤 Transform your aquarium into a thriving aquatic masterpiece!
Aqua Natural Galaxy Sand Bio-Substrate is a premium 5lb aquarium sand seeded with live nitrifying bacteria that instantly cycles your tank. Sustainably sourced and triple-washed, this fine black sand supports aquatic plants and rapidly converts harmful ammonia to nitrates, promoting crystal-clear water and a healthy ecosystem.

| Customer Reviews | 4.6 out of 5 stars 1,355 Reviews |
T**D
Great substrate!
I’ve really enjoyed this substrate. I mixed it with my old substrate (which was a mix of sand + small gravel substance) when I upgraded tanks and I like the look of this one a lot. It’s more of a fine sand texture and a really beautiful sparkly black. My plants and ADFs seem to love it. It’s already a bit wet in the bag (they recommend not rinsing it) so it was easy to place into my tank that already had water in it. I love that it has beneficial bacteria to help the tank cycle too. It did make my water a bit cloudy for about ~2 days but this cleared up on its own with time.
J**S
Superior product - CLEARED my aquarium water within days
My aquarium has 12 goldfish ( fancy ) and a few pleco's. I have a very nice filter, but I could not get the water to clear up. Read about this product and within a few days, this substrate made a massive change - clearing up the cloudy-ness and now it is crystal clear. Buying a second because I LOVE the look of solid black substrate.
S**N
Loveee!
I have used this in every single tank I own, betta, corydora, pleco, shrimp and loaches. They all love it! It helps the cycle process and helps keep plants nice and healthy. Kudos for the glittery specks that look beautiful under the lights
D**E
Great
Absolutely beautiful and works great. I mixed mine with some gravel I had. My water was very cloudy at first but cleared up in several hours.
B**Y
Beautiful sparkly sand, but snails 🐌 came with it 😔
Beautiful sand the black is so sparkly. I love it, but it came with a surprise. A few snails were in the bag. Don’t love that.
F**G
This galaxy sand looks great in my nano tank
This black galaxy sand looks great in my nano tank. Good price too. Would recommend.
G**E
$$ but good
Great but overpriced. Should be more product at this price
A**E
Keeps plants buried
Love the color! It looks great! It is also a great consistency and made my plants stay in place, unlike the gravel on its own. Hoping this will help my plants come back to life. It was a bit murky right after adding water, but it was back to normal within a couple of hours. I used it in my 10 gallon tank, it covered the whole bottom and then I layered my gravel on top
Trustpilot
2 weeks ago
2 weeks ago