thanks for the comment. actually I made a timer after which they will leave you alone, but the value of it could be too long (I didn't change it though as I was thinking that you will have a couple of tries and not like 1 min = eat all fish and just reach last size class) + you should move away from them as soon as they start the chase

:) yeah, the hard part is at the beginning for some time, but when you level up and can eat bigger fish, then the progression goes faster