This is a discussion on What to do if you find a dead fish within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; -->
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What to do if you find a dead fish in your tank | Features | Practical Fishkeeping...
They should modify that article with what to do with dead fish to add in burring it in your garden, circle of life! Maybe not around edible plants if you are worried about it carrying something but at least around flouring plants so the dead fish goes to good use and you don't waste a plastic baggy.