Oct 11, 2009 #1 P Perk Aquarium Advice Apprentice Joined Jul 3, 2008 Messages 24 How long do brine shrimp and rotifer cysts last on the shelf?
Oct 11, 2009 #2 OP OP P Perk Aquarium Advice Apprentice Joined Jul 3, 2008 Messages 24 Hm, not too long when opened. But refrigeration seems to extend the hatch rate a bit.