Hi im new and i just started a 20 gallon nano. i was just wondering....i set up my tank 3 days ago and eveything is stable, but it doesnt look like my cycle has started i have measured ammonia and nothing. I know, I know it takes a while im just impatient :bash1: . anyway well i have some about 20 pounds of live rock(cured) in the tank. and yet again i purchased some more rock that i thought was pretty cool from the marshall islands. Well i got to to thinking if i put that marshall LR in the tank wont all the hitchhikers die???? and then i just wasted my money, because my tank hasn't cycled yet. or will most survive the cycle period?? thanks in advance bye1: