Hi everyone. I have been thinking about trying to make an enclosed ecosphere. Has anyone done this before? I have no experience but I’ve been researching. I was thinking getting large jar and filling it with water from a mature tank, and a few pieces of filter media from a cycled tank to put into the substrate. Then I would use some clean baked dirt and cap it with aquarium safe sand. I would then add some plants from my tank, and maybe get a new plant for it if I feel like it. I would add a lot of plants, making it heavily planted to absorb nitrogen but not so heavily that enough algae couldn’t grow. Then I would leave it for a little while until it has quite a bit of algae. I was thinking of adding 2 maybe 3 neocaridina shrimp. I know the plants will bring in some biofilm, and the mature tank water will have some stuff as well. And of course they will have their molts to eat. Also some Ostracods will ride in on the plants, so the shrimp can eat ones that die as well. Do you think this will be enough food. Do you think that with the plants and algae the water will stay safe? I have never done this before, so if I am completely wrong please tell me. If I am wrong, please tell me how to improve or make another setup so that it will work. My idea of enclosed is no feeding, no water changes, also no filter or heater either, they would stay at constant room temp. I have seen people do this, but will it be successful? Like I said, I’m new to the whole idea of making an enclosed ecosystem, so please share with me anything you know and don’t hesitate to say that I’m completely wrong. Thanks!