Co2 Regulator Aquarium
FailThe top 5 brands take 99% of clicks, so Co2 Regulator Aquarium is a Fail.
- Flapen Score
- 32 / 100Ranks 3,807 of 3,978 Pet Supplies niches · −19 vs the category median of 5132
- Market size
- $37K/yr29K searches / yr
- 90-day growth
- -22.6%search demand this quarter
- Competition
- 72%top-5 click share · 6 brands · 9 sellers
Flapen Score
Co2 Regulator Aquarium against its category
The dotted line is the Pet Supplies average. Past it, Co2 Regulator Aquarium is stronger. Inside it, weaker.
Market
The Co2 Regulator Aquarium market on Amazon at a glance
Shoppers on Amazon United States searched for Co2 Regulator Aquarium 29K times last year and spent an estimated $37K. The top 5 brands take 99% of clicks. Flapen scores it 32 out of 100, a Fail.
01 · Demand
An estimated 1.8% of those searches ended in a purchase.
Shoppers searched for this 29K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 1.8% of those searches ended in a purchase. Searches in the last 90 days moved -22.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $37K a year.
- Searches, last 12 months
- 29K
- Growth, 90 days vs prior 90
- -22.6%
- Conversion, latest week
- 1.8%
- Market size, estimated
- $37Ka year
- Peak month
- February1.5× the quietest month
- Top search term
- co2 regulator aquarium19K searches a year
02 · Price
A sale here is worth $71.23.
Listings sell for $71.23 on average, from $29.95 to $132.10. Amazon reports units sold in ranges. This niche sold 750 to 1K a year. The average listing sells 0 to 100 of them. At $71.23 that is $0 to $7K a year per listing.
- Average price
- $71.23inside the $15 to $100 sweet spot
- Price range
- $29.95–$132.10
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 750–1K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$7K
- Returns
- 5.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
93% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 5.0% of listings are out of stock. The average listing ranks #389 within Fish & Aquatic Pets. It carries 246 reviews at 4.18 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 93%
- Prime listings
- 100%
- Out of stock, average day
- 5.0%
- Average rank
- #389in Fish & Aquatic Pets
- Average rating
- 4.18 starsAmazon United States average 4.42 stars
- Average reviews
- 246per listing
- Listings tracked
- 14
04 · Newcomers
3 of last year's 6 launches cleared the first-year sales bar.
6 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 53 months on average, so the names here are settling in.
- Launched, last 12 months
- 6
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 53 months
Products
Top Co2 Regulator Aquarium 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
FZONE Aquarium Co2 Regulator DC Solenoid with Bubble Counter and Check Valve Plant Grow DIY CO2 System CGA320 Side Open Cylinder
- Price
- $53.95
- Rating
- 4.2/5
- Reviews
- 1,662
- Age
- 7y ago

FZONE Aquarium CO Regulator Kit Compact Aquarium CO System with Diffuser Upgraded DC Solenoid and Bubble Counter Check Valve for Establishing CO System in Aquatic Plant Tank
- Price
- $46.93
- Rating
- 4.4/5
- Reviews
- 52
- Age
- 8mo ago

Hygger CO2 Aquarium Co2 Regulator Dual Gauge Accurate Display with 12V DC Solenoid Valve Bubble Counter and Check Valve for Establishing CO2 System in Aquatic Plant Tank
- Price
- $52.29
- Rating
- 4.4/5
- Reviews
- 60
- Age
- 1y ago

FZONE Pro Series Aquarium Dual Stage CO2 Regulator Adjustable Output Pressure with DC Solenoid and Integrated High Precision Needle Valve and Bubble Counter
- Price
- $129.58
- Rating
- 4.2/5
- Reviews
- 651
- Age
- 6y ago

Hygger CO2 Upgraded Aquarium CO2 Regulator with Motorized Valve Dual Stage Adjustable Pressure Expandable for Two Tanks Includes Timer and Bubble Counters for CO2 Aquarium System
- Price
- $127.08
- Rating
- 4.5/5
- Reviews
- 20
- Age
- 8mo ago
Trending
estimated 90-day click momentum
Complete Aquarium CO2 System Desktop CO2 Regulator with 45g Disposable CO2 Cartridge Compatible with 5/8 and 3/8 Threaded for Nano Aquariums
- Price
- $59.40
- Rating
- 4.0/5
- Reviews
- 56
- Age
- 9mo ago

FZONE Aquarium CO Regulator Kit Compact Aquarium CO System with Diffuser Upgraded DC Solenoid and Bubble Counter Check Valve for Establishing CO System in Aquatic Plant Tank
- Price
- $46.93
- Rating
- 4.4/5
- Reviews
- 52
- Age
- 8mo ago

Hygger CO2 Upgraded Aquarium CO2 Regulator with Motorized Valve Dual Stage Adjustable Pressure Expandable for Two Tanks Includes Timer and Bubble Counters for CO2 Aquarium System
- Price
- $127.08
- Rating
- 4.5/5
- Reviews
- 20
- Age
- 8mo ago

FZONE Desktop Aquarium CO2 System CO2 Regulator with 45g Disposable CO2 Cartridge Compatible with 5/8 and 3/8 Threaded Interfaces Perfect for Nano Aquariums
- Price
- $46.97
- Rating
- 4.3/5
- Reviews
- 140
- Age
- 1y ago

MostAqua Aquarium Dual Stage Co2 Regulator Pro-Master Series Co2 System Kit for Aquarium Plants Integrated Bubble Counter and Adjustable Output Pressure
- Price
- $132.10
- Rating
- 3.9/5
- Reviews
- 15
- Age
- 2y ago
Newest
by launch date
Hygger CO2 Upgraded Aquarium CO2 Regulator with Motorized Valve Dual Stage Adjustable Pressure Expandable for Two Tanks Includes Timer and Bubble Counters for CO2 Aquarium System
- Price
- $127.08
- Rating
- 4.5/5
- Reviews
- 20
- Age
- 8mo ago

FZONE Aquarium CO Regulator Kit Compact Aquarium CO System with Diffuser Upgraded DC Solenoid and Bubble Counter Check Valve for Establishing CO System in Aquatic Plant Tank
- Price
- $46.93
- Rating
- 4.4/5
- Reviews
- 52
- Age
- 8mo ago

Complete Aquarium CO2 System Desktop CO2 Regulator with 45g Disposable CO2 Cartridge Compatible with 5/8 and 3/8 Threaded for Nano Aquariums
- Price
- $59.40
- Rating
- 4.0/5
- Reviews
- 56
- Age
- 9mo ago

Dmzosmd Dual Stage CO2 Regulator Aquarium
- Price
- $94.01
- Rating
- 3.9/5
- Reviews
- 5
- Age
- 9mo ago

Aquarium Co2 Regulator Mini CO System with Upgraded DC Solenoid and Bubble Counter Check Valve Detachable Design for Building CO System in Aquatic Plant Tank
- Price
- $40.82
- Rating
- 4.3/5
- Reviews
- 22
- Age
- 12mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 72% of clicks. A locked shelf that new listings rarely crack.
Brands
6 falling
Sellers
9
Est. top-5 brand share
99%
Top 20: 100%
Est. top-5 click share
72%
Top 20: 100%
Open market
0%
- FZONE61%
- Hygger CO229%
- Clscea3%
- Dmzosmd3%
- DaToo2%
- MostAqua2%
- Open — no brand owns it (0%)
Demand
Co2 Regulator Aquarium search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Reviews and returns
What reviews say buyers love and hate about Co2 Regulator Aquarium
We read the reviews and the return reasons for every product selling here.
“this thing leak”
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.
14 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 Co2 Regulator Aquarium 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









