Fish dissection is a great practical to show the gas exchange system in fish. Exact fish may vary but usually sprat and always 5-10cm. Pack of 5.
All fish is sustainably sourced from the UK.
Preserved in formalin and vacuum packed for storage and delivery. Unopened will last for 6 months in the fridge. Once opened, use immediately or submerge in preserving fluid.
Information sheet available: Preserved Specimens