In some respects Toady i am 'old school' so im not sure what you mean by 'biotope' and my tank is 48inches long by 12 wide and 17inches deep(water level to floor). It took me n me m8 to carry it to where it is now and now that its full of water, gravel, stones and not forgetting the fish, i defy the Incredible Hulk to shift that lot lol.
I will endeavour to do as you say and take things from there-will try gettin pics up too, i tried before now but i always get the camera flash on the glass and the pic is spoiled, will experiment with different angles.
not before a water change tho lol as its looking decidedly 'off colour' just now, i put some of that GREEN AWAY for ponds in there(a moment of madness)and now everything appears to have a golden appearance to it. Doesent seem to have affected the fish in any way tho but the water does need a change so i will rectify this before i post anything. Cheers for the info and il get back soon .


Jack.