Star-flog wrote:Sure, the tank size is good and now the question is how expensive to make this 4ft tank ?
Also, I would probably go for
all woods 'decoration' instead of
River bank type. Thinking its more cool looking. Same color throughtout and perhaps equip with moonlighting...no plants.
Nevertheless, I read some people goes for River bank type. Is there any reason and which one is better and why ?

There are several reasons to choose one design from another. You have to compromise between several things:
1. Try to reproduce the exact environment that the fish lives in.
This is of course ultimately not possible, as most fish live in big bodies of water, not a 100-300 liter puddle.
There are other difficulties too, the water may contain a lot of big rocks, which wouldn't fit well in the tank, or have a muddy bottom that is half a meter/2ft of mulch.
2. Try to make it pretty.
In general, we want our fish-tanks to look pretty, at least if it's located in a "common" area of the house. Having something that looks like a minature of a timber logjam is probably not the most attractive thing. Same with having water that looks like milky tea or weak coffee. You want to be able to see the fish, at least when they are at the front of the tank.
3. Try to make it affordable.
If you're a millionare, this isn't an issue. For most other people, there is a limit on how much you want to spend on the decorations.
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Mats