Twice a week, divers enter the aquarium to siphon off debris, scrub the algae from the rocks, and clean the tunnel windows. Every day we sample the ph, temperature, ammonia level and salinity. We have our own formula to maintain the correct salinity in the tanks. We started with fewer than 15 sharks in the exhibit. Everyday we learn something new.
Sharks take a long time to mature.
Some range in age from 8 to 18 before they can reproduce. Sharks have no mammary gland, because they are fish, so the pups must be ready to fend for themselves from birth without the benefit of any parental care. Not all sharks swim continuously. Some sharks have the ability to pump water through their mouth over their gills to get oxygen for breathing. Sharks have low blood pressure.