HOUSING AND SOCIAL NEEDS (cont)
When evaluating an acceptable population density for housing a particular species consideration should be given to growth rates, social needs and breeding status of the species of fish being housed. It is recommended that growing juvenile and adult zebra fish be housed 5 to 10 fish per liter of water.
A useful publication with recommendations for housing of fish is The Care and Use of Amphibians, Reptiles and Fish in Research that is available from the Scientists Center for Animal Welfare.