Since this project has fish and plants it is called an aquatic ecosystem and you will use goldfish and a couple plants in. Web diy bottle hydroponics. Web make an aquatic ecosystem in a bottle.
Step by step diy aquaponics
Diy auto siphon aquaponics
Building diy aquaponics system
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2.) cover half of the bottle with paper and tape off all areas you don't want painted.
Cut your coke bottle in 2 equal parts.











