Hi, i'm running 3 bitmine coincraft rigs, 2 of 1 th/s and one of 600 gh/s that's are mining from a couple of days, i paid 8500eu the order so..i'm asking i will earn if btc price will stay stable or i'm going to lose my money?
You're probably looking at a 60-day period to pay off your hardware, probably another 10-15 days with electricity costs included. You might be able to reduce that a bit if you sell your bitcoins yourself at a higher premium rather than through an exchange. Some people can get verified on an exchange or don't want to in order to remain private, so using the localbitcoins site you can earn up to 15-20% more per BTC, but there's some risk involved with that as well.