Ok heres my deal. i have a 50 gallon tank. 3 ft long, 21 in tall, 12.5 depth. i just got so it has no water or nothing. i need to cycle it after i get back from christmas break its at my apt and i am going home for a month. i was thinking to cycle my tank when i get back could i....use the bio spira and 10-12 tetra or danios to cycle my tank. the reason i want to use fish is because i wont be able to get my P.s untill the summer so that 3 months. i been reading on cycles and many people use fishless methoid but i dunno. i also have a tiger oscar that i want to throw in there after the tank is cycled untill i get my ps. would this work?? and i have 1 more question wheen school gets out i have to transport my tank to my house which is 1.6 hrs away. so that only wheen college gets out for the summer. is there anyting i need to do when i get home with the tank. do i need to recycle it over again?? thanks for the help.