I have a 30 gallon tank wright now and would like to get a bimac but now I am aware that they need at least a 55 gallon tank. So if I get a 55 gallon tank put the water from my 30 gallon tank into the 55 gallon would it be conciderd cycled? Do I realy need live rock? I plan to get it in the future. I will get some regular rock. thanks in advance

Also could I keep a bimac in a 30 gallon for a few weeks until I get a 55 gallon tank.