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Why the aquarium have to be cleaned once in a while? |
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Answer» In order to clean the water , as the dirtiness cause due to fish excretion and other dust so that it is easy for fishes to survive in aquarium ?? To clean the dead fish or else decomposers would feed on it and consume all the dissolved oxygen, making it difficult for other fish to survive To protect from iron Inorder to remove the deoxygenated water |
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