In North Dakota's Bakken formation, the break-even cost has fallen into the $20s in some counties, the state's Department of Mineral Resources reported last month. Producing a barrel of oil would still be profitable at $24 in Dunn County, down from $29 last October.
You can exclude this risk. Water temperatures and influence on fish behaviour Normal temperatures for keeping discus fish lie at 29-30 Â°C. If your fish are too calm and do not eat greedily but are hesitant about eating, raise the water temperature for c. two weeks to 33 Â°C. This will raise the metabolic rate of the discus fish and encourage their appetite and their sense of hunger.
In the wild, worms can move through the soil to find a temperature that suits them, but you must protect worms living in composting bins from extremes. Composting worms reproduce best when they are kept between 55 and 77 degrees Fahrenheit, with the ideal temperature hovering in the range of 60 to 70 degrees. Reproduction. Worms are hermaphroditic -- each one has both male and female parts -- but generally speaking, it still takes two to make babies. Sparse populations of worms may be slow to reproduce, but as a general rule, a worm at least 60 days old can find a mate and produce a cocoon that contains an average of four babies. Typically, a population of composting worms doubles every three to six months.