Jellyfish exist on a full spectrum of care level. Some are super easy, some are super tough. The more delicate, and less capable jellyfish need more specialized tanks.

Understanding the Context

I built this super simple jellyfish tank years ago by folding a piece of knitting mesh into a U shape and putting it in a tall and skinny aquarium. My jellyfish keep dying and I'm not sure why. The pH is 7 and the salinity is 1.023 with water around 22 degrees Celsius in a ten-gallon tank. The water that I am changing the tank water with is de-ionized water is that an issue?

Key Insights

Also, I have been feeding my jellyfish brine shrimp, both dead and... This tank was set up with 3 small jellyfish 2 weeks ago. The tank was cycled properly. The salt was added to the water for a water change and was kept overnight before testing. The chemical parameters of the new water were identical to the tank water.

Final Thoughts

A successful water change was made a week... This tank was set up with 3 small jellyfish 2 weeks ago. The tank was ... I was gifted a jellyfish tank that I'm cycling, but I'm having a heck of a time finding the actual animals to buy. I know some of the sites that say they're in Canada are scams. Anyone have any experience getting jellyfish in Canada?

Is it possible to buy jellyfish in Canada (such as moon jellyfish)? The only jellyfish you can possibly put in your tank is an upside down jellyfish sometimes available in the hobby. Not very hardy. Can I put a jellyfish in my reef tank ?!