Cheers, those guys are cool, might just see what the family think next time we add more livestock. Will take a break from further stocking for now as we just picked up some Leopard Longfin Danio's and a Tiger plec. We also succumbed to my sons requests to get a baby angel for his birthday (which we will need to re-home when it's bigger if we haven't got an additional, suitable tank by the time it grows).
We are well entertained by the danio's, they really liven up the tank and the plec is a hit with our boys, it's just a shame he is somewhat shyer than our last plec.
Thanks once again for the suggestions and advice, keen for as much insight as I can get so keep it coming if you have something to add