I'll the sand from my tank, and wondered if the bottom glass will grow algea on it no and wondered as well if I leave it without touching it will it grow long enough to look like a "natural state" also if it does grow and get long and hairy like is it harmful to anything inside the tank ? No live plants ... Just a aro, rtc, pbass, gold severum, florida gar... Not like anyone in the tank will eat it nor do I care I only clean the veiwing panels on the tank anyway
