I just tried to start up my fission nano skimmer and almost overflowed my 24g nano cube. Could someone walk me thru this installation<I am engineering challenged and i need help. I have put the skimmer in the first compartment(the one to the left) above the chemipure bag and carbon bag<is this ok?Also how far above the water should the collection cup be ? I have a fuge in the middle compartment and my pump in the third compartment.Can I run the skimmer at the same time as the pump? Thanks in advance for your help.