The Sealife Centre will be getting a new water tank after plans to change parts of the building were approved.

Brighton and Hove City Council approved the proposals put forward by aquarium owner Merlin Entertainments on June 13.

Merlin Entertainments said the centre in Madeira Drive needed a new "quarantine tank" for poorly animals, which will be kept in a staff-only area inside the grade II listed building.

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It also said it wanted to replace the existing life support equipment in this area with newer versions, and replace the pipework and walkways.

In order to do this, the aquarium said a new steel lifting beam will need to be installed to safely transfer animals between tanks and new concrete floor slabs will need to replace old ones.

Merlin Entertainments said that the existing slabs, which date back to 1927, "would not be sufficient to support the weight of a new tank nor the proposed new equipment".

When the plans were first submitted back in March, Osbornes Chartered Architects, on behalf of Merlin Entertainments, said : "The proposed work will be entirely to back of house areas of the building that are currently used for storage and as service areas.

"There will be alterations made to an existing concrete slab, and existing areas of concrete edging, however these have limited historic importance when compared to the other areas of the historic asset.

"These areas of concrete are likely to have been installed during 1927 works to the building and the concrete slab is ground bearing and is very thin. Because of this the proposed alterations will have negligible to no impact on the historic asset as a whole."

When approving the plans and giving listed building consent, a spokesman for the council said these changes would not negatively impact the heritage asset of the building.

The council also said that the changes would help preserve the building.

A date for when these internal works are set to begin has not yet been confirmed.