Thanks QA.

I've sent a query to Harrison's. Google maps says they're an hour and 45 minutes from my place. It will be interesting to see how their thoughts on stocking numbers compare with the recommendations that I've read from the experts here.

I have access to all of the free shipping pallets that I can use. I've got 18 of the 3'x3' size stacked outside my workshop now. I just need to screw them together and place them in the pond.