One fish in your tank looks sick. Where does Merck say it can be watched and treated more easily?

Start playing free

  1. In the main tank with everyone else
  2. In a separate quarantine tank
  3. In a cup on a sunny windowsill

🔒 The answer is for AhaBulb members. Members see the answer, why it's right and the official sources for every card of Stuff Every Fish Owner Should Know, plus timed practice exams.

The first 50 cards of every test are free to play.

Play the free cards See membership

Like this card?
Play the game

References

  1. Merck Veterinary Manual: Routine Health Care of Fish www.merckvetmanual.com/all-other-pets/fish/routine-health-care-of-fish Checked 2026-10-11.
  2. Merck Veterinary Manual: Routine Health Care of Fish www.merckvetmanual.com/all-other-pets/fish/routine-health-care-of-fish Checked 2026-10-11.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game