While posting for years some posts do come to ones mind that were most enjoyable, interesting or got extar attention.. Can you recall only one post that had the affect on guppies.. if u do, please post its link here.. I would go by the following one - that was interesting, got attention of the most active guppies and was not controvercial.. in addition , it brought out how guppies felt about other and how closely they knew each other..