I just got some HC in from SnS today for my 5 gal and I'm about halfway through planting it, however, my corys and my kuhli loaches I fear will be causing me grief when I read that bottom dwellers tend to uproot HC before it can get a chance to hold on. How long does it usually take for it to start rooting? What can I do with my fish in the mean time while I let it settle in? Should I leave them in and hope for the best?