Deep-Sea's shares continue to rise from their midsummer abyss. This week they have gone up another 25p, or 11%, to 250p as the aquaria operator reported a healthy 83%, or £362,000, rise in interim profit before tax to £798,000. Turnover improved by £930,000, or 60.1%, to £2.46m in the six months to the end of August as Deep-Sea's second site, Blue Planet in Cheshire, opened for business in July, four months late. The shares are still 150p short of their high of 400p. Managing director Phil Crane believes the market for aquaria throughout the UK and Europe is 'enormous'. He is currently in discussions about acquiring other sites for expansion. Because Blue Planet opened late the group does not now intend to pay a maiden dividend until this time next year.