Aquarium Starter Kit: The Five Things That Actually Matter

Planted freshwater aquarium — Filtration and cycling matter far more than the tank’s decoration. Photo: User Aleš Tošovský — Public domain

Most beginner fish die from a filter that has not cycled, not from bad luck. Here is what to buy first, why a bigger tank is easier than a small one, and the test kit nobody wants to pay for.

Freshwater fish among plants — Stock slowly: the filter needs weeks to catch up with new fish. Photo: 16toki — Public domain

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Photography credits: User Aleš Tošovský (Public domain) via Wikimedia Commons