Quote:
Originally Posted by Quiet_Ivy
Hm! First attempt and no coagulation
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It's important to get a pretty dense population of the dinos in the sample water. I usually siphon dinos directly off the rocks or sand into a 1.5L water bottle with a 3/8" tube. It doesn't matter if you get sand or detritus in the sample, just try to get as many dinos as possible.
Also, it's very important to shake the bejesus out of the sample before filtering it. This ensures that the dinos are separated into small enough sizes to fit through the filter.
Lastly, the filtered sample might need to be lightly stirred to help the dinos come into contact with one another. If you don't notice any aggregation after 2 hours give the sample water more time. Set it up on a shelf somewhere so nobody mistakes it for their water! I've left these samples in ambient light over night and when I check them out the next morning there are nice colonies formed.