its up to you. some people like the tan colored water. others want it gone from day one. its really up to you.
Whilst we are on the subject, is it best to have the wood directly on the base glass of the aquarium or should I place it on top of the sand? I was thinking on the glass would be good as it would prevent gas pockets from developing beneath it. Then again it could also damage the glass?
That's what I do.I would just lay it on the sand or put a little gravel under the wood.