1. Empty Bottle Micro Tank
Super easy and easy to follow instructions at College Life DIY.
2. Converted Xbox 360
Detailed instructions, and a video, are available at Blue World Aquariums.
3. Gumball Micro Aquarium
Learn how to make this mid-skill level tank at Instructables.
4. Non-Functioning Blender Betta Fish Tank
Read all about how to convert the kitchen appliance at Instructables.
5. Heated LED Coffee Hot Tropical Fish Tank
Step-by-step instructions at Robots and Computers.
6. Upcycled Retro Television Aquarium
Apartment Therapy has detailed instructions on how to create this vintage fish home.