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20 to 39 Gallon Fish Tank Kits

Setting up your first aquarium can be an exciting adventure and Petco is here to get you started in your underwater adventure. Having the correct filtration and operational components like a power filter and aquarium heater, for tropical fish, is critical to ensuring they thrive. You will want to select a sturdy aquarium stand as your fish tank can weigh well over 100lbs when setup!

Frequently Asked Questions

A 20 gallon long tank dimensions are 30"L x 12"W x 12"H. A 20 gallon high tank is 24"L x 12"W x 16"H.

Water weighs approximately 8.5lb per gallon. When full of substrate and decor, a 20 gallon aquarium can weigh close to 200lbs.

Standard 29 gallon fish tank kit dimensions are 32.25″L x 14.25″ W x 20.63″ H.

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