Annually staff spent over 1000 hours doing underwater cleaning each year.
"We are ridding the tank's surfaces of unwanted grime and built-up organic matter to ensure its underwater residents continue to receive the highest possible standard of care."
When it comes to cleaning personal aquariums, Christie said there were a few ways.
"Maintaining a clean aquarium is incredibly important for the health and wellbeing of its residents.
"It is important to regularly clean your tanks – whether they be freshwater or saltwater – and ensure all your filtration systems are working properly. It is also important to check your fish are looking healthy," Christie said.
For the ideal environment, there was a "balance you must find".
"There is fish produce waste products and the food that is not eaten, you are basically creating a whole environment for them to live in.
"It's not just like having sheep on a farm where there is air and grass. We have to create the whole environment."
The frequency of cleaning was key, a daily ritual for the divers at Kelly's.
"I'm happy if divers are in there every day.
"It's all very well to have a fish tank, your little Piscean friends are as important as your cats and dogs."
