[philg3]

So I re-did my aquascape last night and added some more sand. After finishing up I put on a clean filter sock and turned on the return and skimmer again.

Skimmer started overflowing right away, no problem, happens from time to time, especially after having my arms in the tank all evening and moving a bunch of stuff around, adding sand storms etc etc. So I turned it off and left it overnight. Woke up this morning before work and it did the same thing, overflowed right away, so I turned it off and went to work. Now I'm home again and its still overflowing like crazy every time i turn it on.

Required Info:
65 Display, 20 gallon sump
SWC 160 Cone Skimmer, Exit pipe is fully open, Venturi intake is as small as possible.

Before the aquascape everything had been running fine for approx. 2 months.

Could it be the Epoxy?

New Sand?

I've removed the filter sock altogether, I dont usually run them all the time, but with all the detritus kicked up after the aquascaping i figured it couldnt hurt.

How long should I leave the skimmer off for?

I did a single 5 gallon water change last night, should I do another?

some expert input is appreciated as always.

Thanks,
Phil