My opinion is that I love the light blue in the first shot, it looks so crisp and makes the tank look so bright. I don't like the darker blues, though.
I love no backing as well, as long as you can't see cords, when you can see cords or pvc pipes it looks crap.
I must say though that keeping it clear and having a sandy coloured wall behind it would be a disappointment. In my opinion it would dull the colours in the tank. Just think how tanks look when there's brown algae going on or brown corals, they look really dull.
Good luck with it Ads,
Jamo.
I love no backing as well, as long as you can't see cords, when you can see cords or pvc pipes it looks crap.
I must say though that keeping it clear and having a sandy coloured wall behind it would be a disappointment. In my opinion it would dull the colours in the tank. Just think how tanks look when there's brown algae going on or brown corals, they look really dull.
Good luck with it Ads,
Jamo.