now that the ice is gone and i can see all my fish made it threw the winter. i was able to bring home a cupple of thangs today that i got for free two 35 gal drums and one 100 gal watter tank they all need a really good cleaning and ill be making the drums into fillters and im think of making the 100 gal tank into a small hatchory or holding talk. the pond water is 40* and i was wonderign when to start the fillter back up that i have in there?