Courses
Underground Aquarium · Free course
Buying Healthy Fish
Bring home fish that thrive, not problems
~30 min 7 lessons Certificate + profile badge
Learn how to spot a healthy fish and a good store, what to ask before you buy, how to get fish home safely, and how a simple quarantine keeps your whole tank healthy.
Free · No prior experience needed
What you'll learn
- 1Spotting a healthy fish
- 2Finding a good fish store
- 3Questions to ask before you buy
- 4Getting your fish home safely
- 5Quarantine: the step most people skip
- 6Buying from other hobbyists
- 7Final exam
Earn your certificate
Finish every lesson and pass the quizzes to earn a shareable certificate and a “Smart Buyer” badge on your profile.