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r/microbiologyNSFW

The study of microscopic eukaryotes, fungi, protists, prokaryotes, viruses, and prions. Founded 2008 · 201.6K members

201.8K members. The best post we have captured here reached 12.3K upvotes, which works out to 61 per 1,000 members.

61peak upvotes per 1,000 members
201.8Kmembers
12.3Kbest post
507most comments
498posts we track

Open r/microbiology on Reddit ↗

What actually lands here

The mix of post types among everything we have captured. Posting a link where almost nothing but images lands is wasted effort, and this is the fastest way to see it.

35% 20% 18% 13% 11%
Image 35% Text 20% Gallery 18% Video 13% Question 11% Link 3%

The topics it labels

Flairs are the community's own categories, and the closest thing a subreddit has to telling you what it wants.

fun 10 image 6 video 1 academic 1

What the ceiling looks like

The biggest posts we have captured here. Links go to the original on Reddit.

Rotifer with a Saw-Toothed Mouth

↑ 12.3K 💬 178 video 2025

I could explain it like I did in the r/sciencememes sub but I think u guys probably get it

↑ 7.1K 💬 489 image 2026

Brains 🧠

↑ 5K 💬 384 image 2025

Our lab has a window of sorrows

↑ 3.6K 💬 84 image 2025

I always wear these jeans to the first day of micro

↑ 3.5K 💬 44 gallery 2026

Uhhh why does this ecoli kinda look like Saddam Husseins hiding spot…

↑ 3.4K 💬 44 gallery 2024

I work at a paper mill and part of my job is analyzing the microbes in our effluent water. I see this green one repeatedly and I have no idea what it…

↑ 3.4K 💬 223 video 2024

Curious if anyone can tell me what I've accidentally cultured here

↑ 3.2K 💬 244 gallery 2026

A friendly reminder not to drink raw milk!

↑ 3.1K 💬 358 gallery 2026

The vets said they found an “abnormal mystery cell” in my lizard’s blood

↑ 3.1K 💬 178 video 2025

Communities its size

Within four times the member count either way, so the comparison is fair. Sorted by upside.

r/microbiology, in numbers

Answered from the posts ViralHunt holds from this community, not from Reddit's own about page.

What is r/microbiology?
r/microbiology describes itself this way: The study of microscopic eukaryotes, fungi, protists, prokaryotes, viruses, and prions. It was founded in 2008 and has 201.6K members.
How many members does r/microbiology have?
r/microbiology has about 201.8K members. ViralHunt has tracked 498 of its posts; the biggest reached 12.3K upvotes, which is 61 per 1,000 members.
What is the most viral post on r/microbiology?
"Rotifer with a Saw-Toothed Mouth" reached 12.3K upvotes and 178 comments in 2025, the highest score among the posts we hold from r/microbiology.
What subreddits are similar to r/microbiology?
Communities of a comparable size we track: r/Leakednews, r/circled, r/International, r/Global_News_Hub, r/FBI, r/Trumpvirus.
What kind of posts do best on r/microbiology?
Of the posts we hold, 35% are image posts and 20% are text posts.
When is the best time to post on r/microbiology?
Across 498 timestamped posts we hold, the slots whose posts averaged the highest score are Tuesday at 11:00 UTC (1.6K avg upvotes), Thursday at 18:00 UTC (1.3K avg upvotes), Thursday at 23:00 UTC (1.1K avg upvotes). The busiest day is Friday. For Reddit as a whole, see the best time to post on Reddit page.
How many upvotes does a post need to reach the top of r/microbiology?
The 20th-best post we hold from r/microbiology has 1.9K upvotes, so that is roughly the bar for the top twenty. We captured 83 posts from it in the last 30 days.

See what is climbing here before you write

ViralHunt tracks Reddit and eight other networks, records how every post grows, and puts what is taking off in front of your team in one list.

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Every figure here is what ViralHunt has captured from r/microbiology, not everything the community has ever posted. We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong. Peak per 1,000 members is computed the same way for every community listed. See how we measure.