Daphnia
MaybeAn estimated 0.0% of orders come back. But shoppers spend an estimated $97K a year here, so Daphnia is a Maybe.
- Flapen Score
- 59 / 100Top 16% of 3,978 Pet Supplies niches · +8 vs the category median of 5159
- Market size
- $97K/yr106K searches / yr
- 90-day growth
- +3.6%search demand this quarter
- Competition
- 52%top-5 click share · 16 brands · 34 sellers
Flapen Score
Daphnia against its category
The dotted line is the Pet Supplies average. Past it, Daphnia is stronger. Inside it, weaker.
Market
The Daphnia market on Amazon at a glance
Shoppers on Amazon United States searched for Daphnia 106K times last year and spent an estimated $97K. The top 5 brands take 68% of clicks. Flapen scores it 59 out of 100, a Maybe.
01 · Demand
An estimated 5.4% of those searches ended in a purchase.
Shoppers searched for this 106K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 5.4% of those searches ended in a purchase. Searches in the last 90 days moved +3.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $97K a year.
- Searches, last 12 months
- 106K
- Growth, 90 days vs prior 90
- +3.6%
- Conversion, latest week
- 5.4%
- Market size, estimated
- $97Ka year
- Peak month
- March1.6× the quietest month
- Top search term
- daphnia46K searches a year
02 · Price
A sale here is worth $16.90.
Listings sell for $16.90 on average, from $4.98 to $31.25. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 100 to 250 of them. At $16.90 that is $2K to $4K a year per listing.
- Average price
- $16.90inside the $15 to $100 sweet spot
- Price range
- $4.98–$31.25
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 4K–5K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $2K–$4K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
38% of listings pay for placement with sponsored ads. 54% ship with Prime. On an average day, 14.0% of listings are out of stock. The average listing ranks #426 within Fish & Aquatic Pets. It carries 357 reviews at 4.11 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 38%
- Prime listings
- 54%
- Out of stock, average day
- 14.0%
- Average rank
- #426in Fish & Aquatic Pets
- Average rating
- 4.11 starsAmazon United States average 4.42 stars
- Average reviews
- 357per listing
- Listings tracked
- 24
04 · Newcomers
0 of last year's 5 launches cleared the first-year sales bar.
5 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 66 months on average, so the names here are established.
- Launched, last 12 months
- 5
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 66 months
Products
Top Daphnia 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
100+ Freshwater Water Daphnia-Great feeders for Freshwater Life and Axolots Please See Our Seller Page for Our Shipping info and Refund Policy
- Price
- $17.93
- Rating
- 4.1/5
- Reviews
- 305
- Age
- 3y ago

GREEN WATER FARM Daphnia Magna Eggs Live Fish Food for Hatching and Culture Suitable for Feed Betta Fish
- Price
- $17.04
- Rating
- 2.9/5
- Reviews
- 292
- Age
- 5y ago

300+ Live Daphnia Magna with Chlorella (Starter Kit) | Premium Living Culture Feeder for Freshwater Fish Fry Shrimp & Axolotls Green Water Planktonic Crustacean Water Fleas Aquatic Live Food
- Price
- $16.75
- Rating
- 4.3/5
- Reviews
- 47
- Age
- 9mo ago

JADINGSFARM Daphnia Instand Fish Food 50ml Ready to Use Aquarium Fish Food Non-Living Food for Betta Saltwater Marine Freshwater Fish (Daphnia)
- Price
- $9.64
- Rating
- 4.4/5
- Reviews
- 46
- Age
- 1y ago

Aquatic Provisions Freeze Dried Daphnia 0.5 oz Fish Food for Freshwater and Marine Aquarium Fish Invertebrates and Fry
- Price
- $12.86
- Rating
- 4.4/5
- Reviews
- 186
- Age
- 2y ago
Trending
estimated 90-day click momentum
Vorenzyme Instant Daphnia Fish Food - No Hatch High Protein Fry Food with Astaxanthin for Betta Guppy Discus Tropical Fish Corals Jellyfish & Seahorses in Saltwater & Freshwater Aquarium (50ml)
- Price
- $8.99
- Rating
- 3.0/5
- Reviews
- 2
- Age
- 5mo ago

JADINGSFARM Liquid Fish Food with Non-Living Daphnia - No Refrigeration Needed for Tropical Fish Fry Corals Seahorses & Jellyfish - Promotes Vibrant Colors & Healthy Growth (Daphnia)
- Price
- $15.99
- Rating
- 4.1/5
- Reviews
- 8
- Age
- 4mo ago

KalaRune Moina macrocopa Eggs (Water Flea) - for Hatching Freshwater Live Fish Food for Newborn Fry Betta Fish and Other Aquatic Species. Encourages Natural Hunting Behavior in Fish. 3 Capsules
- Price
- $13.69
- Rating
- 3.7/5
- Reviews
- 15
- Age
- 1y ago

Aquatic Arts Live Daphnia Magna 100PK Fish Food Freshwater Crustaceans Plankton for Freshwater Aquarium Food for Betta Fish Tank Live Freshwater Fish Food Fish Tank Cleaner
- Price
- $19.74
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 3y ago

Two (2) Live Green Water (Chlorella vulgaris) Starter Culture Vials - Live Phytoplankton for Aquarium microfauna Stability Infusora Production Zooplankton (Daphnia Moina etc.) Food and More
- Price
- $17.95
- Rating
- 5.0/5
- Reviews
- 7
- Age
- 4mo ago
Newest
by launch date
JADINGSFARM Liquid Fish Food with Non-Living Daphnia - No Refrigeration Needed for Tropical Fish Fry Corals Seahorses & Jellyfish - Promotes Vibrant Colors & Healthy Growth (Daphnia)
- Price
- $15.99
- Rating
- 4.1/5
- Reviews
- 8
- Age
- 4mo ago

Two (2) Live Green Water (Chlorella vulgaris) Starter Culture Vials - Live Phytoplankton for Aquarium microfauna Stability Infusora Production Zooplankton (Daphnia Moina etc.) Food and More
- Price
- $17.95
- Rating
- 5.0/5
- Reviews
- 7
- Age
- 4mo ago

Vorenzyme Instant Daphnia Fish Food - No Hatch High Protein Fry Food with Astaxanthin for Betta Guppy Discus Tropical Fish Corals Jellyfish & Seahorses in Saltwater & Freshwater Aquarium (50ml)
- Price
- $8.99
- Rating
- 3.0/5
- Reviews
- 2
- Age
- 5mo ago

300+ Live Daphnia Magna with Chlorella (Starter Kit) | Premium Living Culture Feeder for Freshwater Fish Fry Shrimp & Axolotls Green Water Planktonic Crustacean Water Fleas Aquatic Live Food
- Price
- $16.75
- Rating
- 4.3/5
- Reviews
- 47
- Age
- 9mo ago

Starter Booster Pack 100+ Water Daphnia and 2 Triple Filtered Rainwater Starter
- Price
- $27.62
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 11mo 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
16 flat
Sellers
34
Est. top-5 brand share
68%
Top 20: 100%
Est. top-5 click share
52%
Top 20: 96%
Open market
26%
- GREEN WATER FARM19%
- Generic19%
- Arcis Aquarium13%
- Carolina9%
- JADINGSFARM8%
- Aquatic Provisions6%
Demand
Daphnia search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.6×
Search terms
Top Daphnia search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- daphnia46K/yr
- live daphnia30K/yr
- daphnia live21K/yr
- live daphnia freshwater3K/yr
- daphnia culture4K/yr
- daphnia live culture3K/yr
Reviews and returns
What reviews say buyers love and hate about Daphnia
We read the reviews and the return reasons for every product selling here.
“Most of them are large as well”
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.
15 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 Daphnia 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









