How competitive is the Black Aquarium Gravel niche on Amazon United States?

11 brands and 24 sellers compete in Black Aquarium Gravel on Amazon United States. The top 5 Black Aquarium Gravel products take 68% of clicks and its top 5 brands hold 85% of demand.

What do buyers complain about in Black Aquarium Gravel?

Black Aquarium Gravel buyers on Amazon United States complain most about Color, Ease Of Cleaning, Size-Overall, the themes mined from the niche's reviews. Its return rate is 2.4%.

What does it cost to enter the Black Aquarium Gravel niche?

Black Aquarium Gravel sells for $13.87 on average on Amazon United States, outside our $15–$100 sweet spot. Listings span $5.54–$34.73. The average incumbent carries 2,563 reviews — the moat a new listing must climb.

Black Aquarium Gravel

soft demand (-15.4% this quarter) — Black Aquarium Gravel doesn't clear our bar today.

Flapen Score

Skip it

Ranks 3,439 of 3,978 Pet Supplies niches · −12 vs the category median of 51

This niche Category average · 3,978 niches

Is Black Aquarium Gravel profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Black Aquarium Gravel is a $91K/yr Amazon United States market (129K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 39/100.

Black Aquarium Gravel: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -15.4% over the last 90 days and 5.1% of searches end in a purchase.

$91K

revenue / yr

Units sold / yr8K

Search volume / yr-15.4%129K

Conversion rate5.1%

Avg price$13.87

Who owns the niche?

The top 5 brands hold 85% of demand, so 15% of the market is open.

15%

open market share

Brands · sellers11 · 24

Top-5 product click share68%

Open market15%

Avg brand age55 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.

0/100

page quality · 16 products

Top Black Aquarium Gravel products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Top sellers

by 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

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: brands, sellers & click share

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 falling

Sellers

Top-5 brand share

85%

Top 20: 100%

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%)

Black Aquarium Gravel demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume129KCVR5.1%Products16Brands11Top 5 Brands85%OOS Rate0.0%Rating4.5★Reviews2,563Avg BSR#72

Peak months: Jan, Feb · busiest ÷ quietest = 1.8×

Top Black Aquarium Gravel search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

black aquarium gravel39K/yr -12.1%4.5% conv.
black gravel for fish tank18K/yr -8.6%4.5% conv.
black fish tank gravel14K/yr -20.3%5.8% conv.
black gravel10K/yr +28.2%2.2% conv.
black aquarium rocks11K/yr -11.0%3.3% conv.
aquarium gravel black12K/yr -38.8%4.2% conv.
black rocks for fish tank8K/yr -20.2%4.9% conv.
aquarium black gravel5K/yr -28.3%4.0% conv.
black gravel for aquarium4K/yr -31.1%4.4% conv.
black fish tank rocks4K/yr -17.1%5.2% conv.

What reviews say buyers love and hate about Black Aquarium Gravel

What buyers mention most, as a share of all reviews.

What buyers love

83% of reviews

Color19%

“Great color”

Quality-Overall18%

“Great quality and gives the tank a sleek natural look”

Advertised Vs Actual Product11%

“As advertised”

Ease Of Cleaning8%

“Cleaned up easily”

Value For Money7%

“Decent value”

What buyers complain about

77% of reviews

Color21%

“Loses color”

Ease Of Cleaning14%

“it did take a while to wash”

Size-Overall14%

“Also they were much bigger than what is shown in the picture”

Value For Money9%

“overpriced”

Quality-Overall6%

“Not the best”

Black Aquarium Gravel return rate & reasons

Why buyers send it back, as a share of all return requests.

2.4%

Return rate

71%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Size-Overall

37%

2Advertised Vs Actual Product

19%

3Color

4Value For Money

5Material Quality

Common Black Aquarium Gravel questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Black Aquarium Gravel 39/100 on Amazon United States — Skip it. The niche generates $91K/yr across 16 tracked products. Search demand moved -15.4% over the last 90 days.