r/aquarium is a subreddit with 175k members. The community frequently discusses fish, tank, help, plants, and struggling, and they frequently recommend/review stocking, aquarium, and canister filter, and the most common flair used is help, discussion, freshwater, showing off , and photo/video.
The premier community for aquarium hobbyists and aquascapers of all experience levels. Whether you manage a 5-gallon nano tank or a 75-gallon community ecosystem, join us to share your setups, ask for advice, and discuss fishkeeping. Check out our quick links below to get started.
**Icon art credit: u/SuicidalFlame - https://firenagy.tumblr.com/ **
**Banner photo credit: Eamosaurus**
Popular Topics in r/aquarium
#1
Fish
90 posts
#2
Tank
84 posts
#3
Help
40 posts
#4
Plants
29 posts
#5
Struggling
27 posts
#6
Betta
17 posts
#7
Algae
16 posts
#8
Filter
14 posts
#9
Shrimp
13 posts
#10
Plant
12 posts
Products Discussed in r/aquarium
Stocking
31 reviews
#1
Aquarium Fish
4.3★ from 13 reviews
#2
Aquarium Snail
4.5★ from 2 reviews
#3
Hillstream Loach
5.0★ from 2 reviews
Aquarium
21 reviews
#1
Amazon
5.0★ from 6 reviews
#2
API
4.5★ from 4 reviews
#3
Aquarium
3.8★ from 4 reviews
Canister Filter
17 reviews
#1
Fluval
4.5★ from 8 reviews
#2
Oase
4.5★ from 4 reviews
#3
SunSun
4.5★ from 2 reviews
Flair Used in r/aquarium
#1
Help
: "what are these? daphnia? ostracods?"
38 posts
#2
Discussion
: "Is this normal behavior for a walking catfish?"
12 posts
#3
Freshwater
: "I got some glass algae"
11 posts
#4
Showing Off
: "Power got restored after a hurricane and my severum couldn't be happier"
10 posts
#5
Photo/Video
: "chat how do I clean this monstrosity of a fish tank"
5 posts
#6
Illness/Injury
: "Help, wound keeps getting bigger"
5 posts
#7
Saltwater/Brackish
: "girl ship"
2 posts
#8
Plants
: "Aquarium juwel Rio 180"
2 posts
Member Growth in r/aquarium
Yearly
+28k members(19.4%)
About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/aquarium, including current member size, discussion patterns, product reviews, and related communities to explore.
This data is synced periodically so insights stay current and useful for ongoing research.
Last updated: October 14, 2026