Correction to title! Not ammonia its Nitrates! Sry... So my 30gal saltwater tank has been set up since 7/28/12 and 4 days ago the Nitrate was at 20ppm and now today its around 30ppm... I put a crab and 5 little baby blue leg hermit crabs in 4 days ago bc I figured it was time to get something going. Other than that I don't have any fish just some live rock and base rock.
Should I do a water change? I have about 4gal I got the other day... try that first and see if it lowers? Or do I need some of that stuff they sell at the LFS
.. not sure what its called but I know they have some stuff that treats the water for high levels of anything.