Salinity Tester – Hydrometer
Test your salt levels!
Jellyfish can be very sensitive to salt levels in your aquarium. This helpful bit of kit will tell you how much salt is in your aquarium water. You’ll then be able to see if you need to make any alterations to the salinity level.
See how to mix salt water here.
Buy salt water from UK Jellyfish to insure you have the best water available for your jellyfish.