Now send EXACTLY 1000 ARC to this address. Make sure to RECEIVE 1000 ARC, so if you're sending from Cryptopia that would be 1000.01 ARC.
Check that you received exactly 1000 ARC by running arcticcoin-cli listtransactions
Thanks for reply. I started over... stopped wallet, deleted wallet.dat. Started from scratch with private-key and 1000.01 coins in my main-wallet.
After trying to send EXACTLY 1000.00 coins to my (new generated) mn1 Address, this is the result:
sendfrom 0 AcGMPFGiPkrVWxxxxxxxxxxxxxxxxxx 1000.00
error code: -6
error message:
Account has insufficient funds
I remember I had this error before and got it only away by adding transaction-fee of 0.01. But as far as I remember it wasn't deducted at all on transaction so it was NOT EXACTLY 1000.00 afterwards on my goldmine-address

May it be possible to use the move-command instead?
move "fromaccount" "toaccount" amount