Posted: 25/04/2012 at 09:06
If you wanted to make use of an aquarium in a garden, then a garden designer would say that the right thing to do would be to make use of it, as an aquarium, as a garden feature.
There's a photo of such a feature here:
I think I saw a similar thing on the one of the TV garden makeover programs last season, possibly one of David Domoney's programs. But you'd really like an aquarium larger than yours, to make an impressive water feature like that.
Another innovative use for a small aquarium, also from David Domoney, is to use it to grow plants hydroponically, so you can see all of the roots. That can make a very unusual garden feature. He had a garden with several glass containers, with plants growing in the water, in his RHS silver medal garden at Hampton Court last year. There's a photo here:
You'd also need to think about what happens when the water freezes. A strong frame, and toughened glass, would be essential to prevent the glass from cracking.