Thanks all for the fast reply..Just dont like keeping 10 fish stuck in a 20 gal. tank..I purchased a 80 gal tank and the bulkhead had to be cut..Bad plumbing on the org. owner..
Boaters World or West Marine have good heavy duty ones. They are throu the hull fittings so they are heavier duty than the ones you get from LPS. I got one from a LPS and it leaked and I tightened it more and it broke in half.