Fish - Starting a pond

I would like to write about our pond fish, not for the benefit of any of my readers but simply because I would like to keep a record of it for myself.
We started our pond in 2013.
In the garden of our newly purchased property, we found a disused water tank covered with a layer of flint stones. It was originally used as a water reserve in the event of fire as fire engines would not have been able to reach the property which is located near the end of a narrow lane.

So, we got to work, We opened the tank ...

 ...emptied it, cleaned it...

...and filled it with water. We then bought one water lily (at £15 the plant, it had to be only one!) and 6 water hyacinths (they were on special offer, 6 for £6, I think)...

The exciting moment was when we purchased 6 comets ( comet goldfish)...

 ... and let them free into the tank.

Things did not seem to go well after that. By the autumn, the water lily and the hyacinths had died and we saw a heron at the edge of the tank. From that day onwards, we never saw any fish and concluded that the heron had eaten them all.

What a disappointment really after all our hard work....

King Fisher stealing my fish

I was looking at the garden through my kitchen window while on the phone to my mother-in-law when I saw an unusual bird sitting on one of the small branches of our apple tree. I had never seen such a bird in my garden before. How beautiful!
 As I was describing it to my mother-in-law, the bird flew down to the pond and retrieved one of my fish!!It then sat on the edge and hit its head on the stone before flying away.

Suddenly, that bird was not beautiful anymore... You thief!!