metroplex
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible13.1%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$41.21avg listing price — sweet spot $15–$100
Returns
Great1.3%return rate — above 6% kills the launch gate
Price range
Great$9.86–$121.26cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good721.4avg incumbent reviews — the moat a new listing must climb
Market size
Good$475K$475K/yr · 88K searches
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-15.8%90-day search growth — must beat 0% to launch
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, metroplex is a $475K/yr Amazon United States market (88K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 44/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
metroplex market data
- Units sold / yr
- 10K–13K
- avg 1,500–2,000/product
- Revenue / yr
- $412K–$515K
- units × avg price
- Launch success
- —
- 0 of 0 new (360d)
- Conversion rate
- 13.1%
- Avg BSR
- #871
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 40%
- Out of stock
- 0.0%
- Avg brand age
- 76 months
- Avg seller age
- 153 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 falling
Sellers
33
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- Seachem52%
- ีUSA28%
- Seachem Treatments11%
- Generic5%
- Transformers4%
Demand
Weekly Amazon search volume, last 49 weeks — -15.8% search growth over the last 90 days.Top metroplex search terms
- metroplex31K/yr
- metroplex seachem16K/yr
- seachem metroplex15K/yr
- metronidazole for fish15K/yr
- fish-zole (metronidazole 250mg)7K/yr
- metroplex fish medication3K/yr
Top metroplex 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 5 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Seachem Metronidazole 5 g(0.18 oz)
Seachem$9.864.5★1,034 rev
Seachem MetroPlex Metronidazole Parasite Bacteria SALTWATER FRESHWATER Aquarium
ีUSA$11.624.6★834 rev
Ultimate Aquarium Treatment Bundle Pack - Metroplex Kanaplex Focus Garlic Guard - All in One Aquarium Treatment
Seachem Treatments$33.784.6★837 rev
Metroplex METRONlDAZOLE Focus Kanaplex Paraguard Neoplex Sulfaplex Polyguard Garlic Guard Saltwater Freshwater Aquarium lnfection ANTlBlOTlC (Metroplex + Kanaplex + Focus)
Generic$29.524.8★66 rev
Transformers Toys Generations Legacy Series Titan Cybertron Universe Metroplex Action Figure - Ages 15 and Up 22-inch
Transformers$121.264.8★836 rev
Newest
by launch dateMetroplex METRONlDAZOLE Focus Kanaplex Paraguard Neoplex Sulfaplex Polyguard Garlic Guard Saltwater Freshwater Aquarium lnfection ANTlBlOTlC (Metroplex + Kanaplex + Focus)
Generic$29.5266 rev
Transformers Toys Generations Legacy Series Titan Cybertron Universe Metroplex Action Figure - Ages 15 and Up 22-inch
Transformers$121.26836 rev
Ultimate Aquarium Treatment Bundle Pack - Metroplex Kanaplex Focus Garlic Guard - All in One Aquarium Treatment
Seachem Treatments$33.78837 rev
Seachem MetroPlex Metronidazole Parasite Bacteria SALTWATER FRESHWATER Aquarium
ีUSA$11.62834 rev
Seachem Metronidazole 5 g(0.18 oz)
Seachem$9.861,034 rev
Trending
90-day click momentumSeachem Metronidazole 5 g(0.18 oz)
Seachem$9.864.5★
Ultimate Aquarium Treatment Bundle Pack - Metroplex Kanaplex Focus Garlic Guard - All in One Aquarium Treatment
Seachem Treatments$33.784.6★
Metroplex METRONlDAZOLE Focus Kanaplex Paraguard Neoplex Sulfaplex Polyguard Garlic Guard Saltwater Freshwater Aquarium lnfection ANTlBlOTlC (Metroplex + Kanaplex + Focus)
Generic$29.524.8★
Seachem MetroPlex Metronidazole Parasite Bacteria SALTWATER FRESHWATER Aquarium
ีUSA$11.624.6★
Transformers Toys Generations Legacy Series Titan Cybertron Universe Metroplex Action Figure - Ages 15 and Up 22-inch
Transformers$121.264.8★
What buyers say about metroplex
What buyers praise and complain about, mined from review topics.What buyers love
“Good value”
“Good quality”
“Effective and easy”
“Seems to work”
“This product works great when following instructions”
“Thank you the seller who combined this three products”
“its really tall it was amazing”
“And yet, he was fun to transform”
“Works as designed”
“Works fine with my tank”
What buyers complain about
“It's very very big”
“Never easy to use”
“I was a little worried after seeing all the negative reviews about spilled/low filled products”
“Less amount”
“not what it says it is”
“they weren't working”
“Our goldfish got an ammonia rash”
“Little bit top heavy”
Top return reasons
Common questions
- Is metroplex profitable to sell on Amazon United States?
- The niche generates $475K/yr across 5 tracked products. 90-day search growth is -15.8%. Flapen's verdict: Skip it (44/100).
- How competitive is the metroplex niche?
- 5 brands and 33 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in metroplex?
- Top complaints mined from reviews: Size-Overall, Ease Of Use, Leak-Proof. The return rate is 1.3%.
- What does it cost to enter the metroplex niche?
- Listings span $9.86–$121.26; the average listing price is $41.21 (sweet spot $15–$100). The average incumbent carries 721 reviews — the moat a new listing must climb.