We have to be very careful when using both. You won't see him or others swim with the sharks due to the danger involved. The sharks' reactions to such conduct may also endanger their own well being. One of the largest creatures under his care is the giant grouper, weighing 75 pounds. The smallest - a neon tetra, measuring just a few grams.
Corals are very delicate and depend upon water quality to thrive.
We treat our whole tank as the animal itself. We want to ensure that the water quality is at an optimum. Heads often turn when senior relief keeper Linda Nunn walks from one assignment to another in the Northern Trek. The polars will spot me in the crowd. They'll turn and follow me as I walk by them, said the North Royalton resident.