I have never used live plants before, what would some good begginer plants that o well to gether in sand?
Hello; It is not so much that plants will not live in sand, more that they have done better for me in gravel that is roughly bb sized. I have grown some in sand.
The fine sand tends to pack tightly. It is often suggested to limit the depth of sand to an inch or so to help prevent the toxic gas pockets. I have found that plants do well for me with a much deeper substrate. I will have four or more inches of substrate in some tanks and usually no less than three inches. Fine sand that deep would be difficult to keep stirred up weekly to prevent the gas pockets (anaerobic bacteria producing waste products).
If you want the look of sand, sifting and discarding all the small stuff can leave particles of most any desired size. Ordinary construction sand is cheap and has a wide variety of particle sizes. A ton was $20 a couple of years ago from a local place. Screens can be made from a variety of screen materials to get the particle size you desire.
I have not tried pool filter sand and thus do not know if it is pre-screened to a uniform size. It does seem more expensive compared to construction sand.