Thats not a bad Idea either. I found out that Tampa bay is still not selling anything right now. I was thinking about getting some of the Ocean direct sand. I found on amazon, I can get a 40 pound bag for around 30 dollars. What do you all think? If so how many bag should I attempt to put in the sand? Which bakes the question do I need to get criters to maintain the sand? LOLWith putting sand in your sump, if you set up racks with trays of sand in the racks you could create more sand surface area in a small space.