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.
No; Discus should not be kept with large, fast swimming, or aggressive fish. But, there are plenty of fish in the sea, as the saying goes. If you do some research, youâll find that there are a few types of fish, such as cardinal tetras and blue rams, which make for great additions to a Discus tank.hat said, most other breeds, such as the Turquoise, Red Turquoise, and Pigeon Blood Discus, make for great beginnersâ Discus. They have been aquarium raised for generations (hence, they are used to aquarium conditions), yet are derived from a relatively large gene pool (making them far less delicate).