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? Also, I have been feeding my jellyfish brine shrimp, both dead and alive, and for some reason, if it sits in the tank for even a little bit of time (2 hours), it starts to disintegrate my jellyfish what is going on?