r/hydro↗
Hydroponics
A home for hydroponic cannabis gardeners. Post grow journals, questions, and discussions!
133k subscribers122 posts / mo in Sep 202673 authors / mosince 2009
r/hydro has 133k members (+10% over the last 12 months). It gets about 122 posts a month from 73 people. Top topics: Pepper Growing, Tomato Gardening and Pepper Growing & Germination.
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How r/hydro has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/hydro
Top topics
Share of the subreddit's posts
- Pepper Growing0.8%
- Tomato Gardening0.6%
- Pepper Growing & Germination0.6%
- Basil Growing & Harvesting0.5%
- Pepper Plant Care0.5%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Grow Weed Easy
- Coco For Cannabis
- Herbies Seeds
- Issuu
- Strainly
Everything else about r/hydro
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