Black Aquarium Gravel
FailDemand is soft, at -15.4% this quarter, so Black Aquarium Gravel is a Fail.
- Flapen Score
- 39 / 100Ranks 3,439 of 3,978 Pet Supplies niches · −12 vs the category median of 5139
- Market size
- $91K/yr129K searches / yr
- 90-day growth
- -15.4%search demand this quarter
- Competition
- 68%top-5 click share · 11 brands · 24 sellers
Flapen Score
Black Aquarium Gravel against its category
The dotted line is the Pet Supplies average. Past it, Black Aquarium Gravel is stronger. Inside it, weaker.
Market
The Black Aquarium Gravel market on Amazon at a glance
Shoppers on Amazon United States searched for Black Aquarium Gravel 129K times last year and spent an estimated $91K. The top 5 brands take 85% of clicks. Demand peaks in Jan–Feb. Flapen scores it 39 out of 100, a Fail.
01 · Demand
An estimated 5.1% of those searches ended in a purchase.
Shoppers searched for this 129K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 5.1% of those searches ended in a purchase. Searches in the last 90 days moved -15.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $91K a year.
- Searches, last 12 months
- 129K
- Growth, 90 days vs prior 90
- -15.4%
- Conversion, latest week
- 5.1%
- Market size, estimated
- $91Ka year
- Peak month
- January1.8× the quietest month
- Top search term
- black aquarium gravel39K searches a year
02 · Price
A sale here is worth $13.87.
Listings sell for $13.87 on average, from $5.54 to $34.73. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At $13.87 that is $3K to $7K a year per listing.
- Average price
- $13.87under the $15 to $100 sweet spot
- Price range
- $5.54–$34.73
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $3K–$7K
- Returns
- 2.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
38% of listings pay for placement with sponsored ads. 94% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #72 within Fish & Aquatic Pets. It carries 2,563 reviews at 4.51 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 38%
- Prime listings
- 94%
- Out of stock, average day
- 0.0%
- Average rank
- #72in Fish & Aquatic Pets
- Average rating
- 4.51 starsAmazon United States average 4.42 stars
- Average reviews
- 2,563per listing
- Listings tracked
- 16
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 55 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 55 months
Products
Top Black Aquarium Gravel products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 17, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Glofish Aquarium Gravel Solid Black 5-Pound Bag
- Price
- $8.89
- Rating
- 4.6/5
- Reviews
- 15,115
- Age
- 14y ago

Aqua Natural Aquarium Substrate Diamond Black Gravel 10lb
- Price
- $14.20
- Rating
- 4.5/5
- Reviews
- 2,452
- Age
- 5y ago

NUPICK 3lb River Rocks for Plants Indoor 1/5 Inch Black Pebbles for Vases Fillers Decorative Pea Gravel for Fish Tank Natural Polished Stones for Succulent Bonsai Landscaping Bird Baths
- Price
- $9.85
- Rating
- 4.6/5
- Reviews
- 142
- Age
- 1y ago

Aqua Natural Aquarium Substrate Pewter Black Gravel 10lb
- Price
- $14.54
- Rating
- 4.4/5
- Reviews
- 41
- Age
- 2y ago

GloFish Aquarium Gravel Fish Tank Gravel Black With Fluorescent Accents Compliments GloFish Tanks 5 lb Bag
- Price
- $8.38
- Rating
- 4.6/5
- Reviews
- 13,386
- Age
- 13y ago
Trending
estimated 90-day click momentum
GloFish Aquarium Gravel Fish Tank Gravel Black With Fluorescent Accents Compliments GloFish Tanks 5 lb Bag
- Price
- $8.38
- Rating
- 4.6/5
- Reviews
- 13,386
- Age
- 13y ago

Glofish Aquarium Gravel Solid Black 5-Pound Bag
- Price
- $8.89
- Rating
- 4.6/5
- Reviews
- 15,115
- Age
- 14y ago

imagitarium by Petco Aquarium Gravel Substrate Frosted Black 20 lbs.
- Price
- $25.29
- Rating
- 4.6/5
- Reviews
- 644
- Age
- 8y ago

Mulctun 2lb Black Rocks for Planters- 1/4 - 3/4 Polished Black Stones Smooth Flat Pebbles for Fish Tanks Decorative River Rocks for Vases Bonsai Pots Garden Stones for Landscaping and Yards
- Price
- $8.64
- Rating
- 4.5/5
- Reviews
- 271
- Age
- 1y ago

Marina Decorative Gravel 1 lb Black 12396
- Price
- $5.54
- Rating
- 4.6/5
- Reviews
- 1,178
- Age
- 8y ago
Newest
by launch date
NUPICK 3lb River Rocks for Plants Indoor 1/5 Inch Black Pebbles for Vases Fillers Decorative Pea Gravel for Fish Tank Natural Polished Stones for Succulent Bonsai Landscaping Bird Baths
- Price
- $9.85
- Rating
- 4.6/5
- Reviews
- 142
- Age
- 1y ago

Mulctun 2lb Black Rocks for Planters- 1/4 - 3/4 Polished Black Stones Smooth Flat Pebbles for Fish Tanks Decorative River Rocks for Vases Bonsai Pots Garden Stones for Landscaping and Yards
- Price
- $8.64
- Rating
- 4.5/5
- Reviews
- 271
- Age
- 1y ago

EZEELAI 0.5 Lb/230g Black Aquarium Gravel Rocks Fish Tank Marbles Pebbles Small Polished Natural Tumbled Healing Crystal Chips Bulk Crushed Stones for Crafts|Fish Turtle Tank|Home Decoration - 7-9m
- Price
- $6.83
- Rating
- 4.4/5
- Reviews
- 978
- Age
- 1y ago

SOUJOY 3 LB Small Aquarium Substrate Gravel Sand Polished Smooth Fish Tank Gravel Black Crystal Chip Stone Natural Decorative Mini Pebbles for Potted Plant Vase Fillers Fish Tank Rock
- Price
- $15.58
- Rating
- 4.8/5
- Reviews
- 56
- Age
- 2y ago

Aqua Natural Aquarium Substrate Pewter Black Gravel 10lb
- Price
- $14.54
- Rating
- 4.4/5
- Reviews
- 41
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 68% of clicks. Leaders hold, but buyers still shop past them.
Brands
11 falling
Sellers
24
Est. top-5 brand share
85%
Top 20: 100%
Est. top-5 click share
68%
Top 20: 100%
Open market
12%
- GloFish41%
- Aqua Natural30%
- NUPICK6%
- Anothera4%
- Mulctun3%
- Mr. Fireglass3%
- Open — no brand owns it (5 brands, 12%)
Demand
Black Aquarium Gravel search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Feb · busiest ÷ quietest = 1.8×
Search terms
Top Black Aquarium Gravel search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- black aquarium gravel39K/yr
- black gravel for fish tank18K/yr
- black fish tank gravel14K/yr
- black gravel10K/yr
- black aquarium rocks11K/yr
- aquarium gravel black12K/yr
- black rocks for fish tank8K/yr
- aquarium black gravel5K/yr
- black gravel for aquarium4K/yr
- black fish tank rocks4K/yr
Reviews and returns
What reviews say buyers love and hate about Black Aquarium Gravel
We read the reviews and the return reasons for every product selling here.
“Loses color”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Black Aquarium Gravel questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









