Return to Salt Water

[Don Schaeffer]

https://www.youtube.com/watch?v=SDEqZOOTycA
I risk a look at my granddaughter's salt water aquarium sample.
It had been neglected for months and I almost feared a monster
lived in there. Biofilm in the salt water has a different look
than in fresh water, differently patterned.
I found bacteria swarming and many cyno-bacteria and diatoms.
I moved my viewpoint a little away from the biofilm lump and
found a surprise family of interesting ciliates.