I’ve had copepods I’ve been culturing for the past 3 weeks and yesterday I emptied out half the jar and then for the final cleaning, I sucked up all the algae and detritus at the bottom of the jar but there was copepods on it. What’s the best way to keep those pods while removing the algae and detritus from the mesh sieve? I used 3 sieves connected to each other. 250/120/50.