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Carib Sea

CaribSea Eco-Complete Planted Aquarium Substrate - 20 lbs - Black Nutrient-Rich Soil for Freshwater Planted Tanks - Promotes Healthy Plant Growth & Water Stability

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Availability: In Stock.
Fulfilled by Petco
Arrives Aug 16 – Aug 17
Order within 23 hours and 50 minutes
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Color: Black


Size: 20 POUNDS


Features

  • Nutrient-Rich Substrate: CaribSea Eco-Complete Black Substrate is packed with essential nutrients to support healthy plant growth in freshwater planted tanks.
  • Ideal for Planted Tanks: Specially designed for aquatic plants, it promotes strong root development and vibrant growth, creating a healthy, thriving tank.
  • Improves Water Stability: Supports biological filtration, reducing nitrates and maintaining a balanced environment for both fish and plants.
  • Contains Trace Elements: Eco-Complete is enriched with essential trace elements, improving plant health and promoting tank stability.
  • No Fertilizer Needed: With a blend of natural minerals and nutrients, this substrate reduces the need for fertilizers, offering a low-maintenance solution for planted tanks.

Description

CaribSea Eco-Complete Planted Aquarium Substrate is the ultimate solution for freshwater planted tanks, providing a nutrient-rich soil for vibrant plant growth. This 20 lb bag of black substrate is designed to support healthy root development and provide the essential nutrients aquatic plants need to thrive. Enriched with trace elements, Eco-Complete helps promote biological filtration, stabilizing the water and supporting nitrate reduction for a balanced tank. Unlike many substrates, it requires no additional fertilizers, offering an all-in-one solution for low-maintenance aquarium care. The porous structure of the substrate ensures efficient nutrient cycling, making it an ideal choice for aquarists who want healthy plants without the hassle. Whether setting up a new planted aquarium or upgrading an existing one, Eco-Complete provides a reliable, long-lasting foundation that supports both plant health and overall aquarium stability, ensuring your planted tank flourishes.

Brand: Carib Sea


Liquid Volume: 1 Gallons


Item Weight: 20 Pounds


Item Form: Gravel


Target Species: Fish


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 18 x 12 x 2 inches; 20 Pounds


Manufacturer recommended age ‏ : ‎ 1 month and up


Item model number ‏ : ‎ 770


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ June 9, 2004


Manufacturer ‏ : ‎ CaribSea, Inc


Best Sellers Rank: #14,864 in Pet Supplies (See Top 100 in Pet Supplies) #111 in Aquarium Water Treatments


#111 in Aquarium Water Treatments:


Item Weight: 20 pounds


Department: Unisex-Adult


Manufacturer: CaribSea, Inc


Item model number: 770


Date First Available: June 9, 2004


Item Package Dimensions L x W x H: 16.5 x 10.1 x 3.1 inches


Item Dimensions LxWxH: 18 x 12 x 2 inches


Item Weight: 20 Pounds


Brand Name: Carib Sea


Target Audience Keyword: fish


Directions: Add substrate to aquarium, rinse if necessary, add water and aquatic life.


Warranty Description: No Warranty


Model Name: Eco-Planted Black 20lb


Color: Black


Size: 20 POUNDS


Material: Plastic


Age Range Description: All Ages


Number of Items: 1


Included Components: Gravel


Specific Uses for Product: Aquarium Substrate


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 16 – Aug 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great product! Looks amazing and easy to plant with it.
Color: Black Size: 20 POUNDS
I love this product! Bought 4 bags and the color is consistent between them. There is a few off color pieces in the mix but not many and to me it wasn't a problem to just press them in and bury them. I have never used this. It comes with a tad bit of water in the bag. It claims that it has nutrients. I used it as a surface layer but under that I did dirt mixed with sand, followed by 1 inch of sand and about 3 inches of this stuff. It worked out well and now I have a very deep substrate. This is basically gravel but is not painted and I am sure my plants will love this. Very nice to look at. I didn't bother checking the PH since it is in a new tank and you really should wait a while before adding fish. I expected it to make the water decently cloudy but it didn't hardly change the water color at all. Maybe just a little bit. Nothing to worry about. And I did not rinse it at all. Much better than your standard gravel which for sure you need to rinse. I spent a lot of time searching for the right gravel and I am glad I bought this. Well packaged too. No leaks in the bag. It is kind of pricey though. That is why I used play sand under it and packed it down. It of course needed to be rinsed first. This product sets nicely on top of the sand under it and doesn't sink in much. You can easily save some money by just using this to cap off some sand. If you use lava rock under it then the heavier rocks will eventually work it's way to the surface so you probably don't want to do that. ... show more
Reviewed in the United States on May 29, 2025 by K W
    • nice, easy to plant in!
Color: Black Size: 18lb
Not so sure how it grows plants yet, but it was super easy to plant them in this stuff. just to let you know, it is just tiny crushed lava rocks, not soil. its inert substrate. its definitely a cheaper option, but you will have to use root tabs if you don't use a layer of aqua soil. it didn't cloud my water, which is nice, don't rinse it, because it comes with a liquid that's apparently full of beneficial bacteria. the color is nice, i got the black. you can get the 18lb for a 20 gallon long. i have about half an inch to an inch layer in the front and about 4 inches in some places near the back with left over. unless you want evenly 3 inches or something, 18 lb. should be enough. i will mention that i used a sand cap, and some of the sand has sifted through the gravel, but only time will tell how it holds up. ... show more
Reviewed in the United States on March 1, 2025 by Michelle Castleberry
    • Amazon much easier than having to go out and buy!
Color: Black Size: 18lb
Good product made easy by Amazon delivery.
Reviewed in the United States on May 20, 2025 by YMass
    • Ready to use!
Color: Black Size: 20 POUNDS
Review Image by MikePhilbrook MikePhilbrook
This product is terrific! It arrives ready-to-use, eliminating the dreaded chore of rinsing before use. It is a clean and safe gravel/substrate. It is exactly what I wanted while preparing to set up my new 40-gallon aquarium. I could not possibly be happier. My 40-gallon looks amazing and it is a wonderful substrate for my live plants. ... show more
Reviewed in the United States on March 29, 2025 by MikePhilbrook MikePhilbrook
    • Water included
Color: Black Size: 20 POUNDS
So part of the 20lbs you're buying is water 😂 Well, I hope this stuff works! Will review later
Reviewed in the United States on June 14, 2025 by A Customer
    • Good Transaction
Color: Black Size: 20 POUNDS
What I ordered and shipped quickly
Reviewed in the United States on April 22, 2025 by Erik Conrad
    • Awesome product
Color: Black Size: 20 POUNDS
Review Image by Darrell Darrell
Looks very good and had my 75gal tank cycled very fast.
Reviewed in the United States on April 14, 2025 by Darrell Darrell
    • I like this stuff
Color: Black Size: 20 POUNDS
I use about two inches of it beneath soil and a cap of sand and have experienced excellent plant growth with this setup. It’s an inert substrate so no nutrients like soil but over time it does absorb nutrients from the water column, which gets redistributed to plant roots as nutrients. Unlike other plants substrates, it doesn’t need to be replaced over time. It retains the ability to feed plants for years, which is a plus, imo. It’s packed in water with vital bacteria in it so it tends to cloud water during the first week or two. It’s a good idea to do several 50% water changes during this time to balance out your tank. After a few weeks, the cloudiness will clear Packaged arrived quickly and in good condition ... show more
Reviewed in the United States on December 16, 2024 by Anthony Carabello

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