---
title: "Products — methylene blue for fish - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/methylene-blue-for-fish/products"
last_updated: "2026-07-22T22:40:38.872Z"
locale: en
meta:
  description: "Niche score 38/100 · $84K/yr market · 73K searches/yr · $10.52 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 38/100 · $84K/yr market · 73K searches/yr · $10.52 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Products — methylene blue for fish - Flapen"
---

# **methylene blue for fish**

**Skip it**

Soft demand (-19.9% this quarter) — this niche doesn't clear our bar today.

Market size 21Growth 15Conversion 91Competition 20Returns 95Price range 27Avg price 38Brand share 19Review moat 25Quality gap 47

**Returns**

**Great****1.0%**

return rate — above 6% kills the launch gate

**Conversion**

**Great****10.9%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Avg price**

**Okay****$10.52**

avg listing price — sweet spot $15–$100

**Price range**

**Okay****$4.53–$18.84**

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

**Review moat**

**Bad****4,525.45**

avg incumbent reviews — the moat a new listing must climb

**Market size**

**Bad****$84K**

$84K/yr · 73K searches

**Competition**

**Bad****76%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****92%**

top-5 brand share — brand-locked demand

**Growth**

**Bad****-19.9%**

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