White icon of hands holding a book on a green background

Complete Betta Tank Setup & Care

A clear breakdown of your aquarium’s equipment so you always know how to care for your tank with confidence

CHECKLISTS

Daily and weekly care tasks to keep your betta’s aquarium stable, healthy, and easy to maintain.

Daily

  • Feed 2–3 pellets, remove leftovers
  • Check temperature (goal 25–27°C)
  • Observe behavior: active, responsive, smooth breathing

Weekly

  • Change 25–40% water
  • Vacuum substrate
  • Rinse filter sponge in old tank water

Your Tank Setup

Learn about each part of your aquarium

This guide explains each key component of your aquarium setup.

Tank Size — ≥25 Litres

Bettas need at least 25 litres or more for stable water quality, proper heating, and enough space to explore. Larger tanks stay cleaner longer and create a healthier, happier environment.

Lid – Prevents Jumping & Reduces Evaporation

Most bettas are surprisingly strong jumpers. A secure lid prevents escapes, keeps dust out of the water, and reduces evaporation, which helps maintain stable water parameters and temperature.

Water pH – Ideal Range 6.5–7.5

Bettas prefer slightly acidic to neutral water. Stable pH is more important than chasing a perfect number, so aim for consistency within 6.5–7.5, avoiding sudden changes.

Substrate – Stable Base for Plants & Bacteria

A smooth substrate anchors plants and provides surface area for beneficial bacteria. This supports a healthy nitrogen cycle and prevents harmful ammonia spikes.

Plants – Hiding Spots & Enrichment

Live or soft artificial plants help your betta feel secure. They provide natural shelter, reduce stress, improve water quality (if live), and encourage natural exploring and resting behaviour.

Heater – 25–28°C (77–82°F)

Bettas are tropical fish and need warm, stable temperatures. A reliable heater prevents cold stress, improves immune function, and keeps your betta active and healthy. Aim for 25–28°C with minimal fluctuation.

Filter – Gentle Flow, Clean Water

Bettas need a low-flow filter that won’t push them around. A good filter removes debris, supports beneficial bacteria, and keeps ammonia and nitrite at safe, stable levels.

Tank Setup