Ok Ive done some thinking and thought a shallow sand bed would do better in the long run. cheaper, wont worry about nitrates being released if theres a sand storm, and it kinda looks better. I think I will have a shallow sand bed in my refugium with a bunch of chaeto and a 65/70w light bulb that will grow it. I have a terrarium reflector light bulb holder thing from reptiles. its like 8.5". So should i do that? and someone might give me 30lbs of free lr. Should I dry it out to get rid of any hitchhikers/ bad stuff. He has had an established tank for about 7 years. i have a 30 gal anyways. so about 2-3 bags of natures ocean bio-active sand, marine white #1 or #0 idk which is right. Or should i buy dry sand? i would like a lot of people giving me replies so i can get a good idea of what i should do. SPREAD THE WORD!