Wrap the live rock in wet newspaper. You can leave the sand in the tank but leave enough water to keep the sand wet. Ditch the hydrometer and get a refractometer, much more accurate. Surface agitation should be done by the skimmer, ph, or the filter. Toss the filter media and stick some live rock rubble in the filter. The skimmer is not really needed as pwc
will accomplish same thing, but since you have it you may as well use it. I'd toss the food and get new food depending on the live stock. Pics didn't come through by the way. A 10g will be a little hard to keep up with, which is why in sw
bigger is always better. Welcome to the salty side!