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r/Slimemolds↗

Slime Molds: Amoeboids With a Split Personality.

Slime Molds. All about Myxomycetes.

57k subscribers93 posts / mo in Sep 202671 authors / mosince 2008

r/Slimemolds has 57k members (+15% over the last 12 months). It gets about 93 posts a month from 71 people. Top topics: Fungi and Mushrooms, Fungi Identification and Terrarium ID & Mold.

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Free report

When to post on r/Slimemolds

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Visitors without an account can open 3 subreddit reports a day. The best time to post on r/Slimemolds, removal risk and the rest of the report are one step away.

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Size and growth

How r/Slimemolds has grown

r/Slimemolds

Subscriber growth

Subscribers over time

+15%in 12 months · +2.3% in 3 months · +0.5% in 1 month
Oct 202657k
Growing57k subscribers
Data since Mar 2018Live · through Oct 2026
r/Slimemolds

Monthly activity

Posts, comments and authors per month

+21%vs Sep 2025 · −0.9% last 3 months vs the 3 before
Sep 202693
BusierPeaked at 215 in Jun 2022
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/Slimemolds

Top topics

Share of the subreddit's posts

  1. Fungi and Mushrooms2.1%
  2. Fungi Identification1.0%
  3. Terrarium ID & Mold0.8%
  4. Dog Poisonous Plants0.7%
  5. Garden Plants0.6%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. iNaturalist
  2. Apple
  3. ResearchGate

The full report

Everything else about r/Slimemolds

Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.

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Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research