Dechlorinator for Fish Tank
FailThe top 5 brands take 98% of clicks, so Dechlorinator for Fish Tank is a Fail.
- Flapen Score
- 48 / 100Ranks 2,345 of 3,978 Pet Supplies niches · −3 vs the category median of 5148
- Market size
- $244K/yr87K searches / yr
- 90-day growth
- -23.3%search demand this quarter
- Competition
- 54%top-5 click share · 6 brands · 44 sellers
Flapen Score
Dechlorinator for Fish Tank against its category
The dotted line is the Pet Supplies average. Past it, Dechlorinator for Fish Tank is stronger. Inside it, weaker.
Market
The Dechlorinator for Fish Tank market on Amazon at a glance
Shoppers on Amazon United States searched for Dechlorinator for Fish Tank 87K times last year and spent an estimated $244K. The top 5 brands take 98% of clicks. Demand peaks in Jan–Feb–Jul. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 21.3% of those searches ended in a purchase.
Shoppers searched for this 87K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 21.3% of those searches ended in a purchase. Searches in the last 90 days moved -23.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $244K a year.
- Searches, last 12 months
- 87K
- Growth, 90 days vs prior 90
- -23.3%
- Conversion, latest week
- 21.3%
- Market size, estimated
- $244Ka year
- Peak month
- July3.2× the quietest month
- Top search term
- ph down aquarium15K searches a year
02 · Price
A sale here is worth $13.14.
Listings sell for $13.14 on average, from $3.82 to $26.64. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 250 to 500 of them. At $13.14 that is $3K to $7K a year per listing.
- Average price
- $13.14under the $15 to $100 sweet spot
- Price range
- $3.82–$26.64
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $3K–$7K
- Returns
- 0.5%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
33% of listings pay for placement with sponsored ads. 96% ship with Prime. On an average day, 0.5% of listings are out of stock. The average listing ranks #248 within Fish & Aquatic Pets. It carries 1,541 reviews at 4.53 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 33%
- Prime listings
- 96%
- Out of stock, average day
- 0.5%
- Average rank
- #248in Fish & Aquatic Pets
- Average rating
- 4.53 starsAmazon United States average 4.42 stars
- Average reviews
- 1,541per listing
- Listings tracked
- 24
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 76 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 76 months
Products
Top Dechlorinator for Fish Tank 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
API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
- Price
- $5.75
- Rating
- 4.6/5
- Reviews
- 3,002
- Age
- 22y ago

Tetra 77140 EasyBalance PLUS Water Conditioner 16.9-Ounce
- Price
- $12.90
- Rating
- 4.6/5
- Reviews
- 4,870
- Age
- 22y ago

API pH UP Freshwater Aquarium Water pH Raising Solution for fish 4-Ounce Bottle Brown
- Price
- $6.53
- Rating
- 4.6/5
- Reviews
- 3,655
- Age
- 22y ago

API PROPER pH 7.0 Freshwater Aquarium Water pH Stabilizer 8.8-Ounce Container
- Price
- $10.99
- Rating
- 4.5/5
- Reviews
- 2,829
- Age
- 22y ago

API Aquarium Pharmaceuticals 30B pH Down Aquarium pH Adjuster 16 oz Model Number: 17163020301 Hook
- Price
- $15.62
- Rating
- 4.6/5
- Reviews
- 3,002
- Age
- 22y ago
Trending
estimated 90-day click momentum
Tetra EasyBalance Plus 8.45 Ounces Weekly Freshwater Aquarium Water Conditioner Gold/Yellow
- Price
- $9.79
- Rating
- 4.6/5
- Reviews
- 1,705
- Age
- 24y ago

API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
- Price
- $5.75
- Rating
- 4.6/5
- Reviews
- 3,002
- Age
- 22y ago

Seachem 20111 Neutral Regulator 500g/1 lb
- Price
- $18.94
- Rating
- 4.7/5
- Reviews
- 979
- Age
- 22y ago

API pH UP Freshwater Aquarium Water pH Raising Solution 16-Ounce Bottle
- Price
- $18.34
- Rating
- 4.6/5
- Reviews
- 3,655
- Age
- 22y ago

API POND pH UP Pond Water pH Raising Solution 16-Ounce Bottle
- Price
- $17.31
- Rating
- 4.6/5
- Reviews
- 367
- Age
- 19y ago
Newest
by launch date
FOLLOWIN pH Up and Down Control Kit for Hydroponics Soil Gardens & Aquariums - Concentrated Liquid pH Adjuster Set (9 oz + 9 oz) with pH Indicator - Balanced Nutrient Solution for Plants
- Price
- $20.34
- Rating
- 4.3/5
- Reviews
- 722
- Age
- 5y ago

Tetra 77140 EasyBalance PLUS 16.90-Ounce 500-ml (2-Pack)
- Price
- $26.64
- Rating
- 4.5/5
- Reviews
- 260
- Age
- 9y ago

Tetra EasyBalance 8.45 Ounces Weekly Freshwater Aquarium Water Conditioner (16177)
- Price
- $8.81
- Rating
- 4.7/5
- Reviews
- 1,394
- Age
- 9y ago

Brightwell Aquatics pH+ Alkalinity Booster for Reef Aquariums 125 ml
- Price
- $7.34
- Rating
- 4.5/5
- Reviews
- 198
- Age
- 10y ago

Brightwell Aquatics Florin pH- - Water Conditioner to Lower pH Level in Freshwater Planted and Marine Saltwater Aquariums 500-ml
- Price
- $17.24
- Rating
- 4.4/5
- Reviews
- 30
- Age
- 14y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 54% of clicks. Leaders hold, but buyers still shop past them.
Brands
6 flat
Sellers
44
Est. top-5 brand share
98%
Top 20: 100%
Est. top-5 click share
54%
Top 20: 97%
Open market
0%
- API48%
- Tetra27%
- Seachem18%
- Kordon4%
- Brightwell Aquatics2%
- FOLLOWIN2%
Demand
Dechlorinator for Fish Tank search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Feb, Jul · busiest ÷ quietest = 3.2×
Search terms
Top Dechlorinator for Fish Tank search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- ph down aquarium15K/yr
- aquarium ph balancer8K/yr
- api ph down7K/yr
- tetra easy balance8K/yr
- fish tank ph balancer6K/yr
- ph up aquarium7K/yr
- seachem neutral regulator5K/yr
- aquarium ph down4K/yr
- aquarium ph up4K/yr
- neutral regulator ph 7.03K/yr
Reviews and returns
What reviews say buyers love and hate about Dechlorinator for Fish Tank
We read the reviews and the return reasons for every product selling here.
“Ineffective”
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.
21 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 Dechlorinator for Fish Tank 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









