I'm not cycling my 3 gallon, that tank is not going to be my betta's home. Betta is in a 3 gallon tank, until tomorrow. My 20 gallon is cycled. I'm taking my male guppies out of the 20 gallon, and put in 6/5 gallon tank. I gotta get my guppies out of my 20 gallon, cause tetra's nipping their...