For beginners, a 20-gallon tank is often recommended. Larger volumes are actually easier to maintain because water chemistry stays more stable.
Add your substrate, then fill the tank with water. Use a water conditioner (dechlorinator) to remove harmful chlorine from tap water.
Most tropical fish require a steady temperature between 75°F and 80°F.
Check the water temperature, observe fish behavior, and remove any uneaten food. Pro-Tips for Success
To get started, you will need the following core components:
Place the tank on a level, sturdy stand away from direct sunlight (to prevent algae) and drafty windows.
Perform a 20-25% water change . Use a siphon to vacuum the substrate, removing settled waste. Always treat new water with conditioner before adding it.
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