Stage |
Fish size |
Light regime |
Other factors |
1 |
0.3 - 15g (75 - 80mm length) |
24 hour light |
Fish must achieve this size by the end of June.
This is usually achieved by using heated water for incubation and first
feeding up to about 2-4g. |
2 |
|
Fish held on 12 hour light / 12 hour dark for 10
weeks |
|
3 |
|
24 hours daylight |
After about 6 weeks of 24 hour light the fish
smoltify |
|
Other methods include holding the
fish on 24 hour light until midsummer and then on natural daylength until
mid-October. The fish then progress on to stage 3 and smolting occurs 6-8
weeks ahead. |