Originally Posted by eticket109  |
| The only fish you will catch will either be Moat Carp or Gold Carp, which can skill you up until about 53. |
Actually Lu Shang is obtained thru moat carp or forest carp which cap at 11 and 20 respectively. And even if it were gold carp, you would never gain skill ups from catching them at level 11 (assuming you capped on moat carp), or even skill 26 (as the OP stated as his current skill).
The highest level of fishing skill you could acquire catching these 2 fish is obviously only 20. Your fishing skill is 26, and as such, you cannot skill up while working on the quest for the Lu Shang.