[stop the press, jhap is going to ask serious question, calm yourself, you knew it would happen eventually, the time has come]

Every now and then I see a oil-lookin sheen across a small portion of the water. JWHAP and I both saw it in one area of the pond this year. Then usually after a few days it's gone. Could that possibly be oil being released from algae? Does FA contain any oils that are released? We have pine trees so I always figured that it was a pine branch that fell into the pond and was releasing something. But could it be oil from algae?

JHAP
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"My mind is a raging torrent, flooded with rivulets of thought cascading into a waterfall of creative alternatives."
...Hedley Lamarr (that's Hedley not Hedy)