To achieve best results, only specific
pathogen-free postlarvae should be
stocked. Once ponds are stocked, a major
factor to control is biofloc volume. Using
Imhoff cones for assessment, biofloc volumes
need to be maintained below 10
mL/L for full biofloc and 5 mL/L for
semi-biofloc systems. Green or brown
water is acceptable, but black water is an
indicator of abnormal conditions.