Some one suggested on another thread of mine that it could be business time for my clownfish, they're picking at the rock and looks like they're scratching against it as well. I also looked into just now and the smaller clown fish has been wiggling, shaking, what have you, vertically by the bigger one. I'm sooper pumped about it, if that's the case, but I just have a few questions and maybe I could get some input. I've had my tank since Sept. '10 and the clowns were a few of the first fish added in Oct. '10. My sig is up to date regarding the rest of the tank so the first question is if this is the case is anything else in the tank going to interfere? Also will a nitrate levels of 40 ppm be an issue? I've also been thinking about aquascaping b/c there seems to be territory issues, should I hold off on that? Any other information regarding would be greatly appreciated, Thanks in advance!