📝
Sucker Fish: Types, Care, and What They Actually Clean
Read article →
New to fishkeeping?
Start Here
01
Betta Fish Tank Setup
Step-by-step tank setup guide for beginners — size, filter, heater, and cycling.
Read guide
02Best Fish for a 10 Gallon
Top 10 beginner-friendly species for a small starter tank.
Read guide
03Master the Nitrogen Cycle
pH, ammonia, nitrites — what matters and how to get it right.
Read guide
04Water Test Kit Guide
How to test your tank water and what the numbers mean.
Read guide
What size is your tank?
Pick your tank size and discover compatible species.
Easy
Platy Fish
Colorful livebearers that thrive in community setups.
View care guide
Easy
Corydoras Catfish
Peaceful bottom-dwellers that keep your substrate clean.
View care guide
Easy
Mystery Snail
Gentle algae grazers with beautiful spiral shells.
View care guide
Easy
Dwarf Gourami
Stunning labyrinth fish with iridescent blue-orange coloring.
View care guide
Popular Species
View allLatest Articles
Recent guides, tips, and insights for aquarium hobbyists.
📝
Plecostomus Fish Care Guide: Tank Size, Diet & Species
Read article →
Freshwater Fish
Cat Safe Plants for Fish Keepers: Which Aquarium Plants Are Safe (and What to Avoid)
Keep your cat safe without sacrificing your planted tank. Discover which aquarium plants are cat-safe and which common houseplants to avoid in 2026.
Read article →
Why TankZen?
Meet our teamResearch-Backed
Every guide is built on peer-reviewed studies and expert husbandry knowledge — not guesswork.
Honest Picks
Affiliate links never influence our recommendations. We test and compare so you don't have to.
Beginner-Friendly
Clear language, no jargon. Whether it's your first betta or tenth tank, we make fish care simple.
FREE GUIDE
Your First Tank
Setup Guide
A printable PDF checklist with everything you need to set up your first aquarium — plus weekly tips delivered to your inbox.
No spam, ever. Unsubscribe anytime.
Weekly Tips
💧Water Quality
🐠Feeding Schedule
🌿Live Plants 101
TankZen
Tank Setup Checklist
Choose the right tank size
Set up filtration
Cycle the water
Test parameters
Add your first fish
+ 12 more steps...