26. An adequate water supply of suitable quality for the fish must be available in salmon hatcheries and in tanks for older fish.
27. Systems for providing an adequate supply of good quality water in hatcheries and for growing fish in tanks, must have alarms to indicate malfunction, must be inspected regularly and should be monitored carefully.
28. Hatcheries, equipment and tanks for salmon should be properly cleaned between batches.
29. Sites for sea cages and the design of the cage must be chosen so as to avoid unacceptable conditions for the fish in good or bad weather.
30. Outdoor tanks and sea cages should have adequate means for protection of the fish from predators.
31. The requirements of salmon for environmental stimulation should be investigated.
:
32. Netting used in the construction of sea cages should present a smooth surface to limit injuries to the fish. Studies should be carried out to find out how to minimise injuries to the snout and fins of salmon in cages.
33. An adequate method for the daily removal of dead and moribund fish from tanks and sea cages must be available (see also paragraph 64).
34. Automatic feeding systems must be properly maintained and should be inspected every day where weather permits.