Jellyfish – Aurelia aurita
We now have 5 tanks of growing jellyfish:
(1) polyp tank #20, (2) small-jelly Kreisel, (3) a medium-jelly Kreisel, (4) a large-jelly Kreisel, (5) main display.
They are all healthy, however, growth seems to have slowed during the last month, perhaps due to our revised schedule of feeding them Artemia only once per day.
The new UV light is keeping algal growth to a minimum, and it now takes two months to exhibit visible algae on the walls of the tank. We have also designed and implemented a new vacuum drainage method, which has reduced the water change time from 24+ hours down to 12 hours.
We continue to hone our techniques and requirements to keep the jellyfish growing, with over half of the jellyfish surviving into the New Year. We still have 300,000 jellyfish in the polyp stage, and are confident that our methods will continue to produce good results.
[*] Strobilation is defined as asexual reproduction by transverse division of the body segments which develop into separate individuals.