I will tell you jellyfish are not hardy and really not suited for home aquariums. They are so delicate. I one time looked into it and a review I read really clicked for me (I have to very roughly paraphrase as I cannot find the review). The man had had tanks before and decided to get a jellyfish tank for his wife. They set it up, ordered the jellyfish, got the jellyfish, everything going great. Wife loved them, he loved them, super awesome. They had gotten the three pack of jellyfish. Then one died, they said oh well, we still have 2, no worries. Then another died. And then finally the last one perished. And this was over a few months. They thought about ordering more, but decided it was not worth it. I feel that last part, that I always remember clearly is key. But, I will say, that was them, for someone else this could be the opportunity of a lifetime. Just my .02
