---
title: "Trend — refractometer saltwater aquarium - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/refractometer-saltwater-aquarium/trend"
last_updated: "2026-07-21T22:28:44.670Z"
locale: en
meta:
  description: "Niche score 39/100 · $54K/yr market · 24K searches/yr · $20.49 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 39/100 · $54K/yr market · 24K searches/yr · $20.49 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Trend — refractometer saltwater aquarium - Flapen"
---

# **refractometer saltwater aquarium**

**Skip it**

A concentrated shelf (top 5 take 93% of clicks) — this niche doesn't clear our bar today.

Market size 13Growth 19Conversion 91Competition 5Returns 53Price range 91Avg price 89Brand share 16Review moat 56Quality gap 52

**Conversion**

**Great****11.1%**

search→purchase rate — share of searches ending in a sale

**Price range**

**Great****$13.37–$48.86**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Avg price**

**Great****$20.49**

avg listing price — sweet spot $15–$100

**Review moat**

**Good****1,247.86**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Good****2.9%**

return rate — above 6% kills the launch gate

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Growth**

**Bad****-11.3%**

90-day search growth — must beat 0% to launch

**Brand share**

**Bad****93%**

top-5 brand share — brand-locked demand

**Market size**

**Bad****$54K**

$54K/yr · 24K searches

**Competition**

**Bad****93%**

top-5 click share — a locked-up shelf