Is aquatic compost profitable to sell on Amazon United Kingdom?

The niche generates £89K/yr across 18 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +57.4%. Flapen's verdict: Worth a look (57/100).

How competitive is the aquatic compost niche?

15 brands and 35 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 72% of demand.

What do buyers complain about in aquatic compost?

Top complaints mined from reviews: Value For Money, Water Resistance, Moist/Dry. The return rate is 0.2%.

When does demand for aquatic compost peak?

Demand peaks in Mar–Apr–May–Jun–Jul; the busiest month runs 10.9× the quietest.

What does it cost to enter the aquatic compost niche?

Listings span £3.00–£18.18; the average listing price is £9.49 (sweet spot $15–$100). The average incumbent carries 1,033 reviews — the moat a new listing must climb.

aquatic compost

Worth a look

Shows low returns (0.2%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Conversion

Great11.8%

search→purchase rate — share of searches ending in a sale

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Growth

Good+57.4%

90-day search growth — must beat 0% to launch

Review moat

Good1,033.17

avg incumbent reviews — the moat a new listing must climb

Brand share

Good72%

top-5 brand share — brands hold most of the demand

Competition

Okay68%

top-5 click share — leaders hold, buyers still browse

Avg price

Okay£9.49

avg listing price — sweet spot $15–$100

Market size

Bad£89K

£89K/yr · 80K searches

Price range

Bad£3.00–£18.18

cheapest to priciest tracked listing — scored on the share inside $15–$100

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, aquatic compost is a £89K/yr Amazon United Kingdom market (80K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Mar–Apr–May–Jun–Jul. Verdict: Worth a look — 57/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

aquatic compost market data

Units sold / yr: 10K–13K; avg 500–750/product
Revenue / yr: £95K–£119K; units × avg price
Conversion rate: 11.8%
Avg BSR: #221
Page quality: 0%
Prime: 61%
Sponsored: 50%
Out of stock: 2.6%
Avg brand age: 63 months
Avg seller age: 190 days

Competition & brand share

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

Brands

15 rising

Sellers

Top-5 brand share

72%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

23%

Hardys21%
Pelle & Sol18%
velda15%
Munnie10%
Mokuzai7%
Jamieson Brothers6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +57.4% search growth over the last 90 days.

Peak months: Mar, Apr, May, Jun, Jul · busiest ÷ quietest = 10.9×

Open Trend

Top aquatic compost search terms

aquatic compost22K/yr +69.4%11.1% conv.
aquatic soil22K/yr +37.5%9.3% conv.
pond soil12K/yr +82.0%9.4% conv.
aquatic soil for pond plants8K/yr +47.3%11.3% conv.
pond soil for outdoor ponds4K/yr +101.1%13.5% conv.
pond compost4K/yr +49.6%10.3% conv.
aquatic compost for pond plants uk3K/yr +36.8%14.2% conv.
pond plant soil3K/yr +44.5%14.3% conv.

All search terms

Top aquatic compost products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

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

All 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Hardys 20L Aquatic Compost for Outdoor Plants - Aquatic Soil with Loam & Grit Nutrient-Rich Feed for Submerged Floating Marginal Water Plants - Garden Compost for Pond

Hardys£10.774.6★261 rev

Pelle & Sol 20L Aquatic Compost for Pond Plants Loam & Grit Aquatic Soil Nutrient-Rich Feed for Submerged Floating & Marginal Plants Garden Compost for Outdoor Use

Pelle & Sol£9.634.4★34 rev

Velda 10L Pond Soil - Aquatic Compost for Outdoor Pond Plants - Aquatic Soil with Nutrients for Submerged Marginal & Floating Plants - for All Garden Ponds

velda£9.164.5★1,496 rev

Munnie 20L Aquatic Compost Soil for Pond Plants Nutrient Rich Aqua Soil & Pond Compost with Heavy Loam Grit Mix for Marginal Floating & Submerged Plants Slow Release Outdoor Planting Soil

Munnie£9.274.5★9 rev

Aquatic Compost 35L bag - Professional Formulation Enriched with Volcanic Dust - Ideal for Pond Plants and the Aquatic Environment - By Jamieson Brothers

Jamieson Brothers£18.184.6★215 rev

Newest

by launch date

Munnie 20L Aquatic Compost Soil for Pond Plants Nutrient Rich Aqua Soil & Pond Compost with Heavy Loam Grit Mix for Marginal Floating & Submerged Plants Slow Release Outdoor Planting Soil

Munnie£9.279 rev

2mo ago

Pelle & Sol 20L Aquatic Compost for Pond Plants Loam & Grit Aquatic Soil Nutrient-Rich Feed for Submerged Floating & Marginal Plants Garden Compost for Outdoor Use

Pelle & Sol£9.6334 rev

3mo ago

GOTVUGE Aquatic Plant Soil & Aquarium Soil Natural Organic Substrate for Water Plants - Safe for Fish Nutrient-Rich Clay Base for Lotus & Water Lily (1.5KG)

GOTVUGE£11.2221 rev

1y ago

Aquatic Pond Soil 1 Litre Planting Bag | Nutrient-Rich Soil for Water Plants & Aquatic Gardening in Ponds & Containers

PureGrow£9.835 rev

1y ago

GOTVUGE Aquatic Soil for Pond Plants 1000g Pond Clay Aquarium Soil Suitable for Small Ponds Water Plants like Lotus Water Lily Safe for Fish and Aquatic Life

GOTVUGE£9.92202 rev

2y ago

What buyers say about aquatic compost

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall27%

“Excellent product”

Value For Money24%

“Good price”

Plant Growth14%

“The plants are happy”

Advertised Vs Actual Product12%

“Product as described”

Ease Of Use6%

“Easy to use”

Ease Of Cleaning3%

“Nice and clean does what it should”

Size-Overall2%

“looks brilliant perfect size”

Moist/Dry2%

“nice comes fairly dry saves weight plants are doing quite well in my boggy patch”

Material Quality2%

“Great substrate”

Color1%

“They are very pretty, and colourful”

What buyers complain about

Value For Money21%

“More expense”

Water Resistance15%

“still not soaking the water in”

Moist/Dry9%

“needs to be thoroughly soaked”

Advertised Vs Actual Product8%

“Not as advertised”

Absorbency6%

“Does not absorb water”

Plant Growth6%

“Not enough soil to plant anything in after adding water”

Ease Of Use5%

“Not easy to use”

Quality-Overall4%

“Looks poor quality soil too”

Natural Resource Wastage4%

“WASTE OF MONEY AND TIME”

Water Flow4%

“Bad water”

Top return reasons

Size-Overall47%

Advertised Vs Actual Product17%

Compatibility-Overall8%

Color8%

Value For Money8%

Moist/Dry3%

Water Resistance3%

Eco Friendliness2%

Functionality-Overall1%

Plant Growth1%

Common questions

Is aquatic compost profitable to sell on Amazon United Kingdom?: The niche generates £89K/yr across 18 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +57.4%. Flapen's verdict: Worth a look (57/100).
How competitive is the aquatic compost niche?: 15 brands and 35 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 72% of demand.
What do buyers complain about in aquatic compost?: Top complaints mined from reviews: Value For Money, Water Resistance, Moist/Dry. The return rate is 0.2%.
When does demand for aquatic compost peak?: Demand peaks in Mar–Apr–May–Jun–Jul; the busiest month runs 10.9× the quietest.
What does it cost to enter the aquatic compost niche?: Listings span £3.00–£18.18; the average listing price is £9.49 (sweet spot $15–$100). The average incumbent carries 1,033 reviews — the moat a new listing must climb.