<p><span><em>Business Group Catfish Aquaculture enlargement as a form of response </em><span><em>to the community groups who are in RT 01 and RT 02 Somoitan, Girikerta, Turi, </em><span><em>Sleman, who wish to pioneer the cultivation of catfish, but they are faced with: 1). </em><span><em>Production problems in the form of limited/partners of the limited knowledge: a). On </em><span><em>preparation techniques for the cultivation of fish rearing pondcat fish. b). stocking of </em><span><em>cat fish. c).enlargement process includes feeding catfish, prebiotics and vitamins, water </em><span><em>treatment pond and high settings. d). about the harvest which includes sorting the </em><span><em>harvest and transport fish. 2). Management problems that include both partners still </em><span><em>lack knowledge about: a). How to access capital financial institution Bank/Non-Bank. </em><span><em>b). Including financial management analyst investment costsand production costs as </em><span><em>well as production breakeven analysis (Break Even Point/BEP) efforten large ment cat </em><span><em>fish. c). About entrepreneurship, especially in business planning. </em></span></span></span></span></span></span></span></span></span></span></span></span><em>The method used to overcome the problem of training and practice are partners as well </em><em>as mentoring. The training consiste do ftraining and practice etraining the fish pond </em><em>preparation, seeding, maintenance catfish, fish harvesting, training how to access </em><em>capital, financial management training business, and entrepreneurship training and </em><em>business planning. The results of this activityis the increase of knowledge, under </em><em>standing and skills of the participants in the cultivation of catfish rearing which </em><em>includes the ability to preparea fishpond, stocking, maintenance and harvesting. In </em><em>terms of partner management business grouph as been an increase in knowledge</em>, <em>understanding and skills of participants in the field of access to capital, management of </em><em>business financial management, entrepreneurship and business planning. While </em><em>mentoring partners can be expected to start catfish farming sustainable </em>enlargement to <em>improvethe economic welfare ofthe group members.</em></p>