Breeding the brittan's rasbora

1. 1
   Breeding tank: 20 L · about 40 × 20 × 25 cm, 20–40 L from the breeding guide
2. 2
   Sponge filter and air pump · named in the guide
3. 3
   Heater, 24–26 °C · temperature from the breeding guide
4. 4
   Spawning mop · named in the guide
5. 5
   Java moss · named in the guide
6. 6
   Egg grid or marbles · named in the guide

Water: 24–26 °C · pH 6–7.5 · bare bottom

A plan from the breeding guide and an adult size of 6 cm. Tank shape is a standard 2 : 1 : 1.2 box, at least 6 adult lengths long. Check each step in the guide above.

1. 1
   2 breeding tanks, 20 L each · about 40 × 20 × 25 cm, set up like the home tank
2. 2
   2 grow-out tanks, 68 L each · about 60 × 30 × 35 cm; twice the breeding tank, never smaller than this species' smallest tank
3. 3
   Shared air pump and air line · one line along each shelf feeds a sponge filter in every tank
4. 4
   Heat the room or each tank · 24–26 °C

In total: 4 tanks, about 176 L of water. A litre of water weighs about 1 kg, so check that the floor and rack can take the weight.

Sizes are worked out from the breeding tank in the guide. Tanks fit a standard 120 cm rack when they can; bigger tanks go on their own stands.