Hi all my new tank has arrived Was supposed to be 120g but closer to 110 itās 500 litres after a long talk with the wife āweā have decided that itās too big to keep empty and canāt store it , My current tank is 4ft 65-70 g and is established currently running a fx4 filter with about 12 days use , I have orderd some quick start and should be here in the few days , can I do a straight swap ? Will there be enough bb in the filter I do have a tAnk full of wood and slate tht will also be put in the new tank, my plan was to add new gravel to the new tank then fill completely with water add the quick start and let sit for 24 il still treat the water with tap safe then take all the wood and slate from the old tank into the new then take the filter from the old to the new then add the fish from the old to the new , please educate me if thereās a better way , will I transfer enough bb ? Iām worried as the volume of the new tank is almost double of the old