On arrival, ornamental ¢sh should be allowed to recover
from transport stress in tanks and acclimate to
local water conditions before being distributed to
retailers. The acclimation operation includes £oating
sealed bags in recovery tanks until the temperature
di¡erence between the transport water and the
recovery water is less than 2 1C. This may take about
30 min for atemperature di¡erence of 4^5 1C. The pH
and hardness of the recovery water should also be
close to the optimal values for the respective species.