Aiyoo bro nico, that fish looks like a 'Kaci' laa, not KNNB Fish......lOl.....

Bro VW, me used to frequent that Kolam Gemuk oso, what you said is right, peel prawn is the best method there but if you wanna get more fish then you gotto play the waiting trick, that's wait until other ppl got bite{fish start open mouth}, then oni pay and fish......:
Another trick is to bring in our own mullet/belanak(since they oni sell lampam), use float or casting, siakap there like it very much, oni problem is you gotto come down to Port Klang to buy those mullet/belanak.........

Bro nico, something like this issit, if it's like this fish, then it's Kaci lor......: