Rust color on a couple clones

I just received a couple clones and within 24 hours I noticed a couple leaves on a couple plants have developed a solid rust color on the tops of leaves.

Any ideas? The rest of the plant and the others look ok.

probably fungas. I got rust fungas from clones as well. Not pretty. There are a couple of sprays, treatments on the market, but they only contain it, not completely eradicate it. If I where you I would consider ditching the clones and keeping a close eye on the remaining ones.
I say that because my entire grow now has it. It doesn't kill your plant, unless you ignore it and do not treat, but I have to spray once a week, religiously, and I do loose some fan leaves to it. I have to just cut the leaves off that show signs of it which leaves the plant with less leaves to photosynthasise (sp) with.
Spectraside and green cure are two fungasides that I use.

Post a pic