victorianus juveniles (mean weight = 8.0 ± 1.1 g) were netted from the nursery ponds and transferred to 24 fiberglass (600 each) open flow-through tanks of capacity 200 L (density = 3 juvenile/L) containing tap water that had been stocked in an intermediate holding tank for at least 48 h to remove chlorine and well aerated by means of electric pump with air stone diffusers.