I got my pastor at church in to reefing last year. He's got a really nice 40g in his office now. One of the teens at church wants to convert a 5g over - he's been in to freshwater. I'm going to give him water, rock and some softy frags. Does anyone have a little bit of sand they could donate to him? My 140g is barely dusted with sand so much so that it would be hard to get it out. A small amount would do, it's just a 5g.