Aquarium Heater
MaybeShoppers spend an estimated $2.5M a year here. But demand is soft, at -44.5% this quarter, so Aquarium Heater is a Maybe.
- Flapen Score
- 55 / 100Top 30% of 3,978 Pet Supplies niches · +4 vs the category median of 5155
- Market size
- $2.5M/yr2.2M searches / yr
- 90-day growth
- -44.5%search demand this quarter
- Competition
- 52%top-5 click share · 10 brands · 32 sellers
Flapen Score
Aquarium Heater against its category
The dotted line is the Pet Supplies average. Past it, Aquarium Heater is stronger. Inside it, weaker.
Market
The Aquarium Heater market on Amazon at a glance
Shoppers on Amazon United States searched for Aquarium Heater 2.2M times last year and spent an estimated $2.5M. The top 5 brands take 80% of clicks. Demand peaks in Jan–Oct–Nov–Dec. Flapen scores it 55 out of 100, a Maybe.
01 · Demand
An estimated 5.8% of those searches ended in a purchase.
Shoppers searched for this 2.2M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 5.8% of those searches ended in a purchase. Searches in the last 90 days moved -44.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $2.5M a year.
- Searches, last 12 months
- 2.2M
- Growth, 90 days vs prior 90
- -44.5%
- Conversion, latest week
- 5.8%
- Market size, estimated
- $2.5Ma year
- Peak month
- December3.8× the quietest month
- Top search term
- aquarium heater935K searches a year
02 · Price
A sale here is worth $19.86.
Listings sell for $19.86 on average, from $6.67 to $45.65. Amazon reports units sold in ranges. This niche sold 80K to 100K a year. The average listing sells 3,000 to 4,000 of them. At $19.86 that is $60K to $79K a year per listing.
- Average price
- $19.86inside the $15 to $100 sweet spot
- Price range
- $6.67–$45.65
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 80K–100K
- Units per listing a year
- 3,000–4,000
- Revenue per listing a year
- $60K–$79K
- Returns
- 3.2%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
81% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #10 within Fish & Aquatic Pets. It carries 3,111 reviews at 4.36 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 81%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #10in Fish & Aquatic Pets
- Average rating
- 4.36 starsAmazon United States average 4.42 stars
- Average reviews
- 3,111per listing
- Listings tracked
- 27
04 · Newcomers
3 of last year's 3 launches cleared the first-year sales bar.
3 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 61 months on average, so the names here are established.
- Launched, last 12 months
- 3
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 61 months
Products
Top Aquarium Heater 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
Orlushy Submersible Aquarium Heater Adjustable Fish Tahk Heater with Free Thermometer Suitable for Marine Saltwater and Freshwater
- Price
- $20.37
- Rating
- 4.4/5
- Reviews
- 8,296
- Age
- 7y ago

hygger Small Aquarium Betta Heater Submersible Fish Tank Heater 10W/25W/50W/100W with LED Digital Display Suitable for Marine Saltwater and Freshwater up to 5/10/16/26 Gallon
- Price
- $16.73
- Rating
- 4.6/5
- Reviews
- 589
- Age
- 3y ago

AQUANEAT Aquarium Heater 50W Fish Tank Heater Adjustable Submersible Water Thermostat with Thermometer
- Price
- $8.92
- Rating
- 4.1/5
- Reviews
- 876
- Age
- 2y ago

HITOP 50W Adjustable Aquarium Heater Submersible Fish Tank Heater Thermostat with Suction Cups for 6-15Gal
- Price
- $13.16
- Rating
- 4.4/5
- Reviews
- 4,149
- Age
- 7y ago

HiTauing Aquarium Heater 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater
- Price
- $32.49
- Rating
- 4.5/5
- Reviews
- 2,402
- Age
- 4y ago
Trending
estimated 90-day click momentum
HiTauing Aquarium Heater 25W/50W/100W/200W/300W Adjustable Knob Fish Tank Heater with Digital Thermometer Submersible Betta/Turtle Tank Heater for Freshwater and Saltwater Tanks
- Price
- $13.66
- Rating
- 4.6/5
- Reviews
- 89
- Age
- 9mo ago

Fluval M 200-Watt Submersible Aquarium Heater High-Performance Compact Heating with Mirror Technology for Fresh & Saltwater Tanks
- Price
- $35.75
- Rating
- 4.4/5
- Reviews
- 5,608
- Age
- 21y ago

HiTauing Aquarium Heater 25W/50W/100W/200W/300W Adjustable Knob Fish Tank Heater with Digital Thermometer Submersible Betta/Turtle Tank Heater for Freshwater and Saltwater Tanks
- Price
- $9.86
- Rating
- 3.9/5
- Reviews
- 65
- Age
- 9mo ago

hygger Small Aquarium Betta Heater Submersible Fish Tank Heater 10W/25W/50W/100W with LED Digital Display Suitable for Marine Saltwater and Freshwater up to 5/10/16/26 Gallon
- Price
- $16.73
- Rating
- 4.6/5
- Reviews
- 589
- Age
- 3y ago

DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W
- Price
- $6.88
- Rating
- 4.3/5
- Reviews
- 734
- Age
- 4y ago
Newest
by launch date
HiTauing Aquarium Heater 25W/50W/100W/200W/300W Adjustable Knob Fish Tank Heater with Digital Thermometer Submersible Betta/Turtle Tank Heater for Freshwater and Saltwater Tanks
- Price
- $9.86
- Rating
- 3.9/5
- Reviews
- 65
- Age
- 9mo ago

HiTauing Aquarium Heater 25W/50W/100W/200W/300W Adjustable Knob Fish Tank Heater with Digital Thermometer Submersible Betta/Turtle Tank Heater for Freshwater and Saltwater Tanks
- Price
- $13.66
- Rating
- 4.6/5
- Reviews
- 89
- Age
- 9mo ago

HANLESHUKA 100W Aquarium Heater for 10-20 Gallon with Auto Shut-Off When Leaving WaterSubmersible Fish Tank Heater Dry-Burn & Overheat Protection Explosion-Proof Freshwater Saltwater Turtle Tank
- Price
- $26.63
- Rating
- 4.2/5
- Reviews
- 213
- Age
- 9mo ago

AQUANEAT Aquarium Heater 300W Fish Tank Heater Adjustable Submersible Water Thermostat with Digital Thermometer
- Price
- $16.41
- Rating
- 4.2/5
- Reviews
- 267
- Age
- 1y ago

hygger Mini Fish Tank Submersible Heater 50W for 5-10 Gallons Small Betta Aquarium Heater with Digital Display Controller Adjustable Temperature
- Price
- $19.78
- Rating
- 4.5/5
- Reviews
- 353
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 52% of clicks. Leaders hold, but buyers still shop past them.
Brands
10 falling
Sellers
32
Est. top-5 brand share
80%
Top 20: 100%
Est. top-5 click share
52%
Top 20: 93%
Open market
12%
- Orlushy23%
- HiTauing18%
- hygger15%
- AQUANEAT15%
- HITOP9%
- DaToo8%
- Open — no brand owns it (4 brands, 12%)
Demand
Aquarium Heater search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 3.8×
Search terms
Top Aquarium Heater search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- aquarium heater935K/yr
- fish tank heater495K/yr
- heater for fish tank107K/yr
- aquarium heater 20 gallon70K/yr
- tank heater55K/yr
- aquarium heater 10 gallon22K/yr
- fish tank heater 20 gallon38K/yr
- aquarium heaters85K/yr
- fish tank heater 10 gallon42K/yr
- 10 gallon fish tank heater33K/yr
Reviews and returns
What reviews say buyers love and hate about Aquarium Heater
We read the reviews and the return reasons for every product selling here.
“Overheated”
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 Aquarium Heater 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









