SO, guys please help,, so i have a 125 gallon for around 3-4 years..currently i am building a 300+ but i don't want my 125 to go wasted, so I'm using it as a sump, so what do i do with my fish in the meantime? .. do you think guys think i could put the fish in a 30 gallon trash can?.. those from rubbermaid for garbage ,, and put maybe a fx5 in there and a airstone?..the other question is that if i want to use the old filter to cycle the new tank,, what should i do with the fishes in the trash can?.. i think they will die soon.. without a filter or BB of any kind,,,, anyone can help?.. fishes are ,, arowana, blood parrot, marble motoro ,NTT ,,thanks all!!