just a quick note, thanking you all for your help on my raised pond...
i have made a bigger raised pond out of a big plant trough, i've three native british plants inside and rocks.
it's over a foot high and i used old logs to make a log pile on either side but i was a little worried about frogs getting in and out...
yesterday i witnessed a tiny frog was hiding amongst the plants, and to my surprise he easily walked up the vertical plastic wall and hid amongst the leaves..
after further looking i found a huge frog looking at me...
i think everyone who is worried about having a big pond should install a tub of water, within a week you should have life, we need to make more homes for the frogs...