article_snippet: Star the fish ahead of the procedure .
article_snippet: To keep The pet fish asleep throughout the procedure, the pet was syringed with oxygenated water containing anaesthetic.
article_snippet: The fish with its cancerous eye before the op .
article_snippet: This allowed water to flow over This gills for about for eight minutes, before the fish effectively came back to life.
article_snippet: The 10-year-old pet had a large tumour on The 10-year-old pet head, making a large tumour difficult for the fish to breathe and swim.
article_snippet: The amphibian was also unable to eat properly and a large tumour was affecting The amphibian ability to see.
article_snippet: The amphibian owners had been monitoring the growth of the tumour, which was sprouting from The amphibian , and decided to opt for the surgery which cost $200 (£105).
article_snippet: During the 'fiddly' operation, the tumour - which had stretched down to the fish's skull - was delicately cut out.
article_snippet: A second lump was removed from A second lump dorsal fin before the fish was returned to water and handed back to A second lump .
article_snippet: the fish underwent an operation to relieve the fish constipation .