That's right, every tank in this thread has a fish that drops an item! Some tanks even have more than one kind of gift giver!

Remember to keep your eyes out when grabbing these tanks!

Fish that give:
Grunny Subs - Pink Magical Giftboxes
Ninja Fish - Aquarium Hermit Cats & Pink Magical Giftboxes & Blue Magical Giftboxes
Aquarium Penguins - Blue Magical Giftboxes
Aquarium Starfish - Aquarium Hermit Cats & Aquarium Knight Fish
Aquarium Piranha - Blue Magical Giftboxes
Candy Corn Fish - Aquarium Hermit Cats
Jellyfish - Aquarium Hermit Cats & Pink Magical Giftboxes
Hamuhamu - Aquarium Hermit Cats
Knight Fish - Aquarium Hermit Cats & Pink Magical Giftboxes & Blue Magical Giftboxes
Turtle - Aquarium Hermit Cats & Pink Magical Giftboxes & Blue Magical Giftboxes
Dark Knight Fish - Aquarium Hermit Cats
Waterspout - zOmg! ring Defibrillate
Gnome Major - zOmg! ring Diagnose


Want a thorough guide on fishy details? Want to know how many items each fish above drops and how often? Check out The Infamous Manny-kun's 'The Potential of Aquarium Fish.