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Science Experiment
I am doing a project on making an ecosystem in a 2-litre pop bottle for my 'bonus project' for grade 10 science. I was wondering if you feed the fish or just leave them?
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you don't need to feed the fish i'm pretty sure. in 5th grade we made ecosystems out of 2 liter pop bottles and we used guppies. there was a plant in there that they ate. <3
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as the other person said, there should be some kind of plant that you put in so the fish can eat that. but after a while, the fish will eat all of the plant, so you'll eventually have to feed them fish food. when i did this, i just took the fish out when i took it home, because it tends to smell bad after a while. so i just put the fish in a fish bowl with the plants and rocks, and fed them fish food.
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The point of the ecosystem is that it's self-sustaining, so you shouldn't have to feed them. There should be some kind of plant in there that they are eating. You have to make sure you have the right kind of fish and plants.
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