I'm based in west London but don't mind travelling anywhere around London. Been to many MA's around the west of London, plant selection was never great. also looking to get rocks/stone. I've been to ADC but at the time new to the hobby and wasn't looking for plants. or is it best to order from on line? the green machine has popped up alot in this forum so have been looking in to it. but as im new I would like to actually go and see the plants as I don't know what im looking for. as for rocks/stones, can i get any kind of rocks/stones from garden shops? a local shop sells for cheap but are meant for outdoors, will they be ok in a fish tank? any ideas?