Review on 🐠 LED Fantasy Jellyfish Lamp Round with Vibrant 5 Color Changing Light Effects - Ultimate Large Sensory Synthetic Jelly Fish Tank Aquarium Mood Lamp. Ideal Gift (Large) by Amanda Smith

Just recently installed. Read guides and other reviews and helpful tips beforehand. The key is definitely that you need to overfill the tank and really push the jellyfish down a bit first. I think the key here is to make sure there aren't any air bubbles that could cause them to get stuck on top. They are very light and even a tiny air bubble can have an effect. I took the advice of another review and did not put all the jellyfish provided in the aquarium. I think it sure makes it less busy. Seems I still have a bit of work to do to get these guys down a bit, but as you can see in the video I can get it working pretty decently within minutes of setting it up. The instructions also mention that "it takes 12 hours for a jellyfish to swim nicely". Not sure why. Overall I think it's worth the price. Less maintenance than a live jellyfish.