i am going to be starting a second tank thats 30 gallons and i was planning on using water from my already up and cycled tank and was wondering how soon i would have to put fish into the tank before it would have to go through a new cyce? and also if i will be getting a new filter with new media should i run the filter on the already cycled tank before placing it on the smaller tank to get the bacteria set up? and any tips that i have over looked would be very helpful. thanks.