... content: Rhodopseudomonas palustric, ,Rhodospirillum Photoshythetic bacterial for aquatic animals Main composition and content:Rhodopseudomonas palustric, ,Rhodospirillum ... reproduction of pathogeny microorganism .prevent the disease of aquatic. Overcome the defect of disinfector.be good for ... indirectly the oxygen.E,speed the growth of aquatic.improve the metabolism of animal body. To strengthen ...