Crescent STEM Aquarium Kit 3 gal

Product No. 78481E

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Tetra® aquarium products are dedicated to helping seasoned hobbyists and beginners alike enjoy a successful, life-long aquatic experience. Tetra products build fishkeeping confidence, one innovation at a time. Our complete line of Tetra® nutrition, water care, filtration and aquarium products help make fishkeeping accessible to all hobbyists so they can benefit from its reward.

Dive into a world of scientific discovery with the Tetra® 3-Gallon Crescent STEM Aquarium Kit. Explore the science behind fishkeeping, including biology, chemistry, physics and mechanical engineering, through hands-on activities in the activity guide. The seamless aquarium features a unique, 3-gallon, curved-front tank for unobstructed viewing and is illuminated by energy-efficient, bright white LEDs hidden inside the low-profile black cover. The kit includes the Tetra Whisper® Internal Power Filter, a small Bio-Bag® Filter Cartridge, four test strips, a thermometer and a Tetra® STEM Kit Activity Guide. Perfect for a kitchen, bedroom or living room, this aquarium is a great way to understand the science behind fishkeeping. Not intended for children under the age of 13. This is not a toy.

  • AQUARIUM KIT: The curved-front, crescent-shaped aquarium offers unobstructed viewing of your underwater environment.
  • GREAT STEM ACTIVITY: Explore the science behind fishkeeping, including biology, chemistry, physics and mechanical engineering through hands-on activities in the included activity guide.
  • INCLUDED ACCESSORIES: Includes Tetra® Whisper® Internal Power Filter, small Bio-Bag® Filter Cartridge, 4 test strips, thermometer and Tetra® STEM Kit Activity Guide.
  • HIDDEN LIGHTS: Bright-white, energy-efficient LEDs are hidden inside the low-profile, black cover.
  • 3 GALLON TANK: Small size that’s perfect for a bedroom, living room or kitchen.



This product comes in the following size: 5 gallon (16.5” x 11.25” x 13.2”)
Aquariums are fun, relaxing, rewarding, therapeutic and educational. As manufacturers and fishkeepers ourselves, we take great pride in making top quality products while helping educate our fellow fishkeepers to ensure they are successful, and their fish are healthy and happy. The general rule for tank size is one inch of fish per gallon. However other factors should be considered, such as:
  • How large will the fish be as an adult?
  • Is it species that is active and needs larger space? Or is it a solitary fish?
  • Is it a schooling fish that needs to be in groups of five or more?
  • Is it a fish that produces a lot of waste?
  • Is it a species that is aggressive, does best with others of the same species type, or is it a more peaceful type that would be a good fit in a community tank?
Small aquariums are a great way to get started in the freshwater hobby, and with any new hobby involving living creatures, it is always best to learn as much as you can. And when buying fish, ask your retailer for guidance in choosing the right fish for your size aquarium.
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