Get a test kit today. No guessing.
Want the kit with ammonia, nitrite, nitrate, and ph.
So, that's what you do now. Focus on the test kit to see if any and how much ammonia is present. You could be in the middle of a cycle depending on the size of those 3 rocks and whether they were cured or not.
I'd suggest a 3 step approach now.
1) get the test kit and check the water. 2) get one of those books recommended above. I liked Fenner's book (only ignore the cycling with fish method he mentions - so outdated now). 3) Plan on moving into the 8o gallon tank.
Honorable mention - ditch the crushed coral in the 10g and use fine, aragonite sand instead. Curshed coral will NOT be your friend in the longrun. Harbors nasty stuff after a while and harder to clean/vacuum than sand.