humidifier fish
Skip itSoft demand (-66.4% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Conversion
Great11.8%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Okay$11.12avg listing price — sweet spot $15–$100
Review moat
Okay2,929.5avg incumbent reviews — the moat a new listing must climb
Market size
Okay$135K$135K/yr · 103K searches
Competition
Bad85%top-5 click share — a locked-up shelf
Growth
Bad-66.4%90-day search growth — must beat 0% to launch
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad$5.98–$15.02cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, humidifier fish is a $135K/yr Amazon United States market (103K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Nov–Dec. Verdict: Skip it — 35/100.
Data updated Jul 6, 2026 · scored weekly · How we score niches
humidifier fish market data
- Units sold / yr
- 13K–15K
- avg 2,000–2,500/product
- Revenue / yr
- $139K–$167K
- units × avg price
- Conversion rate
- 11.8%
- Avg BSR
- #16
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 75%
- Out of stock
- 0.0%
- Avg brand age
- 26 months
- Avg seller age
- 175 days
Competition & brand share
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 falling
Sellers
19
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
85%
Top 20: 100%
Open market
0%
- Funmit43%
- Protec36%
- Leemone15%
- FreshOasis6%
Demand & seasonality
Weekly Amazon search volume, last 109 weeks — -66.4% search growth over the last 90 days.Peak months: Jan, Feb, Nov, Dec · busiest ÷ quietest = 7.0×
Top humidifier fish search terms
- humidifier fish34K/yr
- humidifier cleaning fish32K/yr
- humidifier cleaner fish13K/yr
- humidifier fish cleaner13K/yr
- protec humidifier cleaning fish8K/yr
- fish for humidifier3K/yr
Top humidifier fish 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.
All 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Protec Humidifier Cleaning Fish Tank Cleaner Fights Slime & Odor Lasts 30 Days 1 Count Color May Vary
Protec$5.984.4★18,656 rev
Humidifier Cleaning Fish for Humidifiers and Fish Tanks Blue 12 Pack
Funmit$13.224.4★776 rev
Leemone Humidifier Cleaning Fish for Humidifiers & Fish Tanks 10 Pack
Leemone$13.754.4★193 rev
Humidifier Cleaning Fish for Humidifiers and Fish Tanks Purple 6 Pack
Funmit$8.634.4★978 rev
Humidifier Cleaning Fish for Humidifiers and Fish Tanks Blue 6 Pack
Funmit$8.924.4★978 rev
Newest
by launch date
12 Pack Humidifier Cleaning Fish Humidifier Cleaner for Most Humidifiers
FreshOasis$15.026 rev
Leemone Humidifier Cleaning Fish for Humidifiers & Fish Tanks 10 Pack
Leemone$13.75193 rev
Humidifier Cleaning Fish for Humidifiers and Fish Tanks Blue 12 Pack
Funmit$13.22776 rev
Humidifier Cleaning Fish for Humidifiers and Fish Tanks Purple 6 Pack
Funmit$8.63978 rev
Humidifier Cleaning Fish for Humidifiers and Fish Tanks Blue 6 Pack
Funmit$8.92978 rev
Trending
90-day click momentum12 Pack Humidifier Cleaning Fish Humidifier Cleaner for Most Humidifiers
FreshOasis$15.024.5★
ProTec PC-2 Humidifier Tank Cleaning Cartridge 2-Count Packages (1 pack of 2 cartridges)
Protec$10.584.6★
Humidifier Cleaning Fish for Humidifiers and Fish Tanks Purple 12 Pack
Funmit$12.834.4★
Humidifier Cleaning Fish for Humidifiers and Fish Tanks Blue 6 Pack
Funmit$8.924.4★
Leemone Humidifier Cleaning Fish for Humidifiers & Fish Tanks 10 Pack
Leemone$13.754.4★
What buyers say about humidifier fish
What buyers praise and complain about, mined from review topics.What buyers love
“its running clean as well”
“Works great in my humidifier”
“Good quality”
“Easy to use”
“Works as described”
“worth it”
“No more smells”
“They are funny and practical”
“Colorful”
“It helps the water to stay clean”
What buyers complain about
“Doesnt fit”
“It still has to be cleaned often”
“Didnt change anything”
“Wish they were a little cheaper”
“I didnt realize till I read the instructions a few days after I started using it that you werent supposed to touch him. which I did”
“it's not the rating they deserve”
“The humidifier doesnt seem to get that slimy stuff on it”
“This left white dust all over my house”
“Broke apart within 48 hours”
“it left residue”
Top return reasons
Common questions
- Is humidifier fish profitable to sell on Amazon United States?
- The niche generates $135K/yr across 8 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -66.4%. Flapen's verdict: Skip it (35/100).
- How competitive is the humidifier fish niche?
- 4 brands and 19 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in humidifier fish?
- Top complaints mined from reviews: Size-Overall, Ease Of Cleaning, Functionality-Overall. The return rate is 0.8%.
- When does demand for humidifier fish peak?
- Demand peaks in Jan–Feb–Nov–Dec; the busiest month runs 7.0× the quietest.
- What does it cost to enter the humidifier fish niche?
- Listings span $5.98–$15.02; the average listing price is $11.12 (sweet spot $15–$100). The average incumbent carries 2,930 reviews — the moat a new listing must climb.