Tiger keeper Teague Stubbington said: "Jae Jae loves chilling out in the Tiger Territory pool - especially on hot days - but we really wanted him to make better use of it and encourage his natural swimming abilities.
"Not only is swimming fantastic exercise for Jae Jae, the anticipation of getting to the meat stimulates his natural predatory instincts - and catching his 'prey' is the best reward he can get!"
More top news
Leyton Orient have been in free-fall ever since Italian Becchetti bought the club from Barry Hearn in 2014.
A long-awaited report criticises industrial action taken by Aslef and the RMT union over the past year.
The prime minister was shouted at as she left the scene of the tragedy in which at least 79 people died.