Courses
Underground Aquarium Society · Free course
New Fish Tank Owner
Your first freshwater aquarium, done right
~30 min 7 lessons Certificate + profile badge
Everything you need to start your first freshwater aquarium and keep your fish alive and thriving — without the expensive beginner mistakes.
Free · No prior experience needed
What you'll learn
- 1Welcome (and the #1 reason beginner fish die)
- 2Choosing and setting up your tank
- 3The Nitrogen Cycle (the most important section)
- 4Water care and water changes
- 5Adding fish the right way
- 6Feeding and everyday care
- 7Troubleshooting, and you did it
Earn your certificate
Finish every lesson and pass the quizzes to earn a shareable certificate and a “Certified New Tank Owner” badge on your profile.