Jellyfish are as easy to care for as regular aquarium fish. The instruction manual will guide you in properly cycling the aquarium. The cycle process is the time where beneficial bacteria colonize the aquarium creating a stable ecosystem. Once the jellyfish are added they require daily feeding and a weekly 50% water change. It's okay to skip feeding for a weekend, but be sure to resume regular feeding schedule afterwards. Jellyfish require a special tank such as our Jelly Cylinders designed specifically for jellyfish. In a regular fish tank, they would quickly perish due to improper flow and heavy suction points where they get sucked into the filtration intakes.