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The aim of this study is to determine the role of different organic manures viz. raw cattle dung, poultry waste and vermicompost on the growth of Vallisneria spiralis in the container. Soil and water nutrients were highest in the poultry manured treatment. It was concluded that the application of cattle manure at the rate of 2 g per 100 g capacity pot in 50% shadow conditions increases biomass, total length, number of leaf and runners of V. spiralis.

Ornamental fish keeping is one of the most popular hobbies in the developed countries of the world and is gaining popularity in many developing countries of the world too. The growing interest in aquarium fishes has resulted in steady increase in aquarium fish trade globally. A major constraint in the economical production of high quality ornamental fish fry is the unpredictability of the egg quality. Besides careful selection of the broodstock, the egg quality is principally dependent on broodstock management and nutrition. Nutrition has direct effect on maturation, egg production, and fry...