Thirteen sharks and more than 300 fish have been moved from Sea Life in Blackpool.
The tourist attraction is saying goodbye to almost 8,000kg of glass. The ten glass panes which make up the ocean tank have been removed for the first time in 23 years.
To get the tank ready to be worked on they have moved 13 sharks, more than 308 fish, 250 bags of gravel, 50 large rocks, and one boat.
More top news
A woman was told she had breast cancer, just months after a scan at a Lancashire hospital had given her the all clear.
Weather details for the long weekend
The Liverpool manager Brendan Rodgers is praising the ''hunger'' his new signings have brought to Anfield.