Fish Tanks

Bettas can survive briefly in small containers, but they do better in a heated, filtered tank of at least 5 gallons, with 10 gallons often better.

Glass is usually the safer first tank for beginners because it resists scratches, costs less, and is easier to clean without damage.

Calculate aquarium volume from length, width, and height, then adjust for glass, substrate, and empty space to get a usable tank size.

A 5-gallon tank is the safer minimum for a betta; 10 gallons is better for stability, cleaner water, and longer-term health.

Plan for 8.34 lb per gallon of water, then add tank, substrate, and equipment; a filled aquarium often weighs close to 10 lb per gallon.

Choose a starter kit with enough water volume, a quiet filter rated above tank size, a heater if needed, and simple maintenance access.