r/SemiHydro is a subreddit with 36k members. The community frequently discusses leca, pon, semi hydro, plant, and semi hydro, and they frequently recommend/review fertilizer, and the most common flair used is discussion, pon, and leca.
Semi-hydroponics, also known as passive hydroponics or passive subirrigation, is a method of growing plants using an inert medium, water, and liquid nutrients. A constant supply of water reaches the roots via capillary action.
Popular Topics in r/SemiHydro
#1
Leca
66 posts
#2
Pon
63 posts
#3
Semi Hydro
46 posts
#4
Plant
39 posts
#5
Semi Hydro
38 posts
#6
Alocasia
30 posts
#7
Hydro
20 posts
#8
Roots
18 posts
#9
Fertilizer
18 posts
#10
Transfer
16 posts
Products Discussed in r/SemiHydro
Fertilizer
9 reviews
#1
Compo
4.0★ from 1 review
#2
Mairol Hydroponics
4.0★ from 1 review
#3
Luwasa Slow Release Fertilizer
4.0★ from 1 review
Flair Used in r/SemiHydro
#1
Discussion
: "Longest lasting alternative to aquariums"
32 posts
#2
Pon
: "Behold. My collection of semihydro office plants."
15 posts
#3
LECA
: "Crazy 16 day root growth"
12 posts
Member Growth in r/SemiHydro
Yearly
+9k members(35.1%)
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Last updated: July 14, 2026