Jellyfish cannot survive in a regular aquarium due to the delicate nature of these animals. Exposure to any intakes or excessive flow can damage the tissue of the jellyfish.
Jellyfish Art's jellyfish tank is specially designed with a water flow pattern that keeps jellyfish from getting sucked into pump intakes. Water flow is powered by the rise of air bubbles from an air pump, not a water pump, so flow is more gentle.
Water flows through the substrate at the bottom of the tank, which spreads it out over a large surface area so there are no strong points of suction to harm the jellyfish. The water flows through the gaps between the substrate particles down towards the bottom of the bubble channel. Here the rise of air bubbles from the air pump drives water flow up the bubble channel. Water exits the top of the bubble channel at an angle and drives a circular motion of water flow, which keeps the jellyfish away from the edges of the tank. This tank design is called a "kreisel" and was developed in the 1960s by a German oceanographer to house plankton onboard research vessels.