Did you measure it Steve?
I used to fish a lake in the 70's called Llyn Hellig near Holywell in North Wales.
Gonna keep this short due to Mrs Bones wanting to use my Amstrad 2086.
It was a 28 acre water with the deepest part of the lake no more than 3 foot, most of it was no more than 18 inches.
In 1962 in one of the worst winters on record, the whole of the lake froze over virtually solid to the bottom.
When the thaw eventually arrived thousands upon thousands of dead Tench had to be removed, so many in fact they were causing a health hazard.
99% of the fish stock was wiped out during that deep freeze except for a few hardy specimens.
The remaining stock sample managed to spawn and then an ecological miracle took place.
The successful progeny had acres upon acres of fertile bottom to feast upon and grew like no tomorrow, no less than five years later huge catches of 5lb and 6lb Tench were the norm.
This was the era where Rev Alston held the Tench record at 8-08.
At that time a Lyn Hellig 6lb tench measured 21 inches in length.
A year later a number of fish topped 7lb in weight but it was not to last.
Successful spawnings in the intermediate years ensured more competition and within a few years the 21 inch Tench had dropped to around 5lb.
Unlike today those fish lived on natural food and not on anglers bait so they could not increase their weight much more.
The reason for my length measurement was that Wendi's fish looks far in excess of 21 inches and obviously is not full of spawn.
I reckon that Wendi's fish come September/ October could approach 8lb plus and quite possible 9lbs.
Again superb specimen and well done.