just catching up on the posts,the one about the cost of electric to run your tank.has anybody though of useing solar powered lights in there tank, i put some solar decking ones under my wall picture rail in the breakfast room(kitching just been posh lol)and it lights it up brill. going to try and get some more when nettos get them in again£14.99,and put them in my tank hood has any body tryed this? free lighting for your tank.