yeah thats right, make sure you agitate the gravel ( good practise) to release any hiden nonsence to give it a good clean....dust from the gravel that sort of thing... good luck. I check my water levels every 3-4 hours during the day so I can stamp out trouble if it arises.....so far only doing waterchanges for nitrates, ammonia and nitrite been great. take it easy and understock, adding 1-2 more fish each week but only if your water levels have been 0 for a week without waterchanges for ammonia or nitrites. good luck again, have you decided on a stocking plan? mine went out the window and now I have platy with fry in tow. plus i bought another tank today, 48L for my betta as i will need to use the 64L for the fry for the next 6-8 months when it finishes cycling.