Anyone know a place where i can find DETAILED instructions on building my own wooden fishtank stand (20gallon)

That are a multitude of sites to go on to get detailed instructions for building all kinds of stuff....DIYnet, BoB Villa's site, any kind of do-it-yourself site should have instructions on building a stand and then just adjust them to your specs.....example, if you find plans for a 4X8 table...agjust the lenght and width to your needs...the legs can easily be transformed to make the base for the stand.....hope this helps....