---
title: "Search terms — black algae killer for pools - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/black-algae-killer-for-pools/search-terms"
last_updated: "2026-08-09T22:28:27.199Z"
locale: en
meta:
  description: "Niche score 68/100 · $411K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 68/100 · $411K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Search terms — black algae killer for pools - Flapen"
---

# **black algae killer for pools**

**Worth a look**

Shows demand growing +309.2% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 56Growth 100Conversion 95Competition 26Returns 98Price range 95Avg price 95Brand share 27Review moat 39Quality gap 77

**Growth**

**Incredible****+309.2%**

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

**Returns**

**Incredible****0.3%**

return rate — above 5% kills the launch gate

**Conversion**

**Incredible****12.3%**

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

**Avg price**

**Incredible****$42.68**

avg listing price — sweet spot $15–$100

**Price range**

**Incredible****$14.88–$74.06**

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

**Quality gap**

**Great****4.3★**

avg incumbent rating — lower means beatable quality

**Market size**

**Good****$411K**

$411K/yr · 78K searches

**Review moat**

**Okay****2,590.92**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Okay****89%**

top-5 brand share — brands hold most of the demand

**Competition**

**Okay****69%**

top-5 click share — leaders hold, buyers still browse

**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")

## Search terms