How long do barbs live
Most barbs live 4–6 years with good care. Hardy but not indestructible: ammonia spikes, fin rot from nipping, and stress from wrong group size are the usual problems. Stable warm water (72–80°F / 22–27°C) and a real school keep them healthy and out of trouble.
The school-size rule
Keep barbs in groups of at least 8–10 of their own kind. A big shoal spreads their social squabbling internally and leaves tank mates alone. A trio of tiger barbs will instead harass your angelfish's fins. Give them a longer tank with open swim space and some plants for cover.
Diet and fin-nipping
Barbs eat standard flakes and pellets plus frozen foods; feed small amounts twice daily. Their nipping is behavioral, not hunger — a well-fed, well-schooled barb still nips if the group is too small. Avoid mixing with slow, long-finned fish (bettas, fancy guppies, angelfish) unless the school is large and the tank roomy.
Tank setup
A 20-gal (75 L) long tank suits a tiger barb school. Moderate flow, plenty of plants, and open lanes mimic their happy place. They tolerate a range of parameters but hate sudden changes — acclimate slowly and keep up weekly water changes. Quarantine new fish to avoid introducing ich.
Beginner mistakes to avoid
- Buying 3 barbs — they terrorize the tank.
- Mixing tigers with long-finned fish — fin carnage.
- Sudden water changes — barbs are change-sensitive.
- Overfeeding — they are greedy and bloating-prone.