Left it on for a while hoping to get a lot of fish, came back and this is the result.
I've attempted fishing sharks and swordfish+tuna although recently it's been stopping in the bank or around the bank within around 45 minutes.
I'm using v1.8 and it's worked well for me in the past, I'd assume the 1.6.3 osbot client update is causing this as this is the last change I made that I remember since it's been playing up.