This is a wonderful classic text on breeding tropical fish. Suggested in a meeting by Michael Hellweg while discussing the culture of live tropical fish food, it was one of the two books on breeding he suggested. At present, I can't find it on Amazon. Gives both general and then specific information on the different types of fish. Authored by Wolfgang Ostermoller and translated from the original German. Copyright 1973, 128 pages. Great information! Bid now!