The study looked at how young Hemifusus tuba shells grow and survive in different salt levels. They found that the best salt levels for survival were between 17.7‰ and 40.8‰, and for growth were between 27.8‰ and 33.2‰. The shells grew about 0.358-0.397 mm and gained 44.64-49.09 mg each day in the best salt levels. If the salt levels were too high or too low, the shells didn't survive well. The shells could adapt to different salt levels if they were slowly introduced to them.