The Deep has been working to raise awareness of just how big some species of pet fish can grow to in a bid to educate customers on the most suitable species to buy. 

Tragically every year, hundreds of pet fish are offered to aquariums having 'outgrown' their tank! In many cases for aquariums it is very difficult to rehome them. Most displays already have the right number of fish and there is a risk of disease and incompatibility with the resident fish.

The Big Fish Campaign was set up after research revealed that in a 4 month period, 11 public aquariums were asked to rehome 144 fish that had ‘outgrown’ their owners’ tanks. Led by The Deep and Dr Peter Burgess, we are working with the hobby fish trade to encourage the voluntary ban on 'Tankbuster' fish species being sold, to raise awareness of the 'Big Fish' problem and promote the importance of research before purchasing fish. Would these fit in your living room?


The Big Fish campaign aims to:

Handy hints for fish keepers:

Read more about The Big Fish Campaign and how you can help.


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Plan your visit

Opening Times

  • Open daily from 10am until 6pm
  • Last admission is at 5pm, although we recommended you to arrive no later than 4pm
  • We are closed on Christmas Eve & Christmas Day
  • The Deep’s peak times are between 11am – 2pm, should you prefer a quieter environment please visit outside these times.
  • Car parking is available costing £3 for six hours. It can become full during school holidays. Alternative car parks can be found here.

The Deep Tower Street, Hull, HU1 4DP

01482 381000 Any questions?

SAT NAV (HU9 1TU) this will take you to Tower Street, Hull, the nearest main road to The Deep.

Ticket Prices

Type of ticket Online On the day
Adult £12.15 £13.50
Child (aged 3 to 15) £10.35 £11.50
Children under 3 FREE FREE
Student* £11.25 £12.50
Senior (60+) £11.25 £12.50
Family of 4 (max 2 adults) £40.50 £45.00
Family of 5 (max 2 adults) £49.05 £54.50
Essential carer FREE FREE

* in full time education, valid NUS, University card or proof of age is required for school and Sixth form students.

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Public transport information

Safety Update

The Deep takes the safety and security of its staff and visitors seriously and continue to work with Counter Terrorism Police Officers to review security regimes on a regular basis. Whilst the details of such plans cannot be shared we have in place measures to respond to changes in the threat levels for international terrorism. In light of recent events the security within the building and external spaces has been reviewed.

As per Government guidelines more information on how to play your part can be found on line.

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