Ive had a change of plan with the pond, im now making a poured reinforced conrete pond, the frame is now up ready for the concrete to be poured on tuesday, the pond is now 6'x4'x2' with a smaller overflow pond attached at the side which measures 2'x2'x1.5' which will have a 3000litre an hour return pump, also the heaters and filters will be in the overflow pond which will be heavily planted and also be used as a quarantine pond, il upload some more pics tonight when ive finished working on the mould