r/fishtank↗
Fish Tanks
A place to connect with fellow fish lovers, share photos, videos, and help new fish keepers!
100k subscribers938 posts / mo in Sep 2026740 authors / mosince 2009
r/fishtank has 100k members (+40% over the last 12 months). It gets about 938 posts a month from 740 people. Top topics: Betta Care, Tank Stocking and FishHealthIssues.
When to post on r/fishtank
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How r/fishtank has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/fishtank
Top topics
Share of the subreddit's posts
- Betta Care5.5%
- Tank Stocking4.4%
- FishHealthIssues3.5%
- Planted Tanks3.3%
- Guppy Fry & Breeding3.2%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Aquarium Co-Op
- AqAdvisor
- Aquarium Science
- INJAF
- FishLab
Everything else about r/fishtank
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.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research