Okay, I lost my little panda fish and I had no real QT to put him in and had to improvise.So today I acquired a small 1.5g tank to use as an emergency sick room. Been searching the forum and found some answers but would like to know for certain: do I have to cycle it and keep it going all the time or could I put the filter sponge in my main tanks filter(fluval 205) and pull it out when I need it, fill the little tank with half main tank H20 and half fresh H20 and turn it on (it has a heater and would warm up fast at that size) Or just stuff the small sponge in the main tank itself (might be unsightly though) Do I put substrate in the little tank, how about a small hiding spot to help the sick little fish feel safe? I know it's a small tank but for one sick fish thought it might do, all my fish are small.Thought I should by some medicine also for common ailments in case something happens on the days my dealers store is closed! If that is a good idea, what are some things to be prepared for?Just want to do the best I can for my fish! (read about power outs today, now I am getting a battery air pump and hand warmer packs! Any thoughts on all this?