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Kurz gesagt
- Activity may decrease and bettas rest more.
- Resting leaves near the surface and a lower water level can make reaching the surface easier.
- Colors may fade and fins may thin.
- Reduce the current and avoid conditions that make swimming harder.
- Water quality matters even more at this stage.
Bettas are considered seniors from about 3 years of age; in good conditions they can live several more years. The goal is to adapt the aquarium to a slowing fish and notice changes early.
What is happening in this stage?
- Activity and swimming time may decrease.
- Colors may fade, and fin edges may thin or curl.
- Appetite may drop and catching food may get harder.
- Rest and sleep increase.
What should you do differently?
- Resting spots: Add resting leaves and plants near the surface.
- Current: Turn down the filter flow; strong currents tire older bettas.
- Diet: Feed slowly and in small amounts; watch whether they manage to eat and remove leftovers.
- Water quality: Regular, small partial water changes; avoid sudden temperature changes.
What should you monitor?
- Water values and temperature
- Appetite and ability to catch food
- Swimming balance and resting time
- Body, scales and fins
Expected behavior
Longer rests, slower swimming and fewer bubble nests are natural parts of ageing.
Reminders
- Weekly partial water change and water test
- Daily temperature check
- Filter maintenance
Die Altersspannen sind Näherungswerte; Unterschiede innerhalb einer Art (etwa die Größe bei Hunden) können die Übergänge verschieben.
Dieser Inhalt dient der allgemeinen Information und ersetzt weder eine tierärztliche Untersuchung noch eine Diagnose. Wenn Sie sich Sorgen um die Gesundheit Ihres Tieres machen, wenden Sie sich bitte an Ihre Tierarztpraxis.