I was fishing in a canal with a whole pilchard. It was just after sunset. I did not feel the bite or anything but I pulled up my bait because I was fishing landbased on top of this cage. I pulled up and I felt the weight. It started taking drag not fast but slow and heavy. It never suctioned to the bottom but had lots of weight. I have hooked countless stingrays and I've landed 60cm+ flat head but this felt different. It saw the land and went off the other way. It just kept swimming until it did one massive slow head shake like a bang bang. Then the hook popped out. It was like a 2 minute fight. I'm not sure what it was but left me questioning. Any ideas on what fish.