Ok so I'm new to salt water

[HaZRaTTy]

Originally Posted by Phil

So I got a new 75 gallon tank and 35 gallon sump and has been running for about 10 days I tested my water today and ammonia and nitrate all read 0 everything else's reads normal. I have about 80 lbs of live rock and sand in it. Does this mean it's safe to get a cleaning crew or a fish or two?

If all your LR = was actually Live rock from another reefers tank and transferred acutely and properly you might not even see a cycle, or you could go through a "Mini Cycle"

Have you seen any swing in Nitrite,Nitrate and Ammonia levels through the days? Diatoms start, stop, disappear?

I would say that there would be no problem adding a CUC.