A video of the 300lb tench between 10″ – 1lb  stocked at Dorchester 25/03/22, including some underwater footage.

 

Note that all of the fish were fine. It is common for new fish to need time to adjust to the shock of entering a new environment – different temps, oxygen levels etc – hence the exhibited behaviour from some of these little tincas on release into the lake. There’s nothing to worry about! They all eventually swam off when they were ready.