Are tubifex worms harmful to the other critters do you think?
Re the dechlorinator chemicals, the first tank fill was solely rainwater off from the roof that I caught from the downpipe. Yesterday's water change was a third dechlorinated water and there are still pods swimming about. Also I still have the original shrimp that was to become killie dinner still living apparently happily in there where it's only dechlorinated tap water. Maybe it's only some chemicals, or maybe I have found a hardy shrimp!!
I don't have a cover on but I do think the oil slick is from the decaying matter - those leaves I had in there were mostly fruit trees and were thick plasticy leaves, full of life giving sap no doubt. Also there were a few pohutukawa which was the same wood that I had in one of my older threads and there was a big oil slick while that was rotting away too. I don't know if anyone else has noticed this.
Today is also More-Pod day for me, am going back to the trough to get more bugs and see how these guys do. Yesterday my husband tried to take me for a walk around the park and I spent half the time running about looking in sheep troughs instead of being attentive :roll: